A strong cat-back exhaust choice matches your exact vehicle and offers the sound, construction, and exit style you want; this lineup suits owners of specific Silverado, Sierra, F-150, Ram, Civic, Lexus, and Tacoma applications. These systems vary widely: some use stainless steel, some list aluminized steel, and several truck kits retain factory hanger locations or offer dual exits. Fitment is the first filter, since a system intended for a different model or cab configuration may not install correctly.
Then compare material, included design details, and sound claims without assuming they guarantee a particular result on your vehicle. The picks below cover distinct applications rather than one universal system, so check the stated year range, engine, cab, and bed details before ordering.
For a vehicle-specific choice with clearly stated construction and sound details, Borla 140753BC is the lead pick. Its listing specifies T-304 stainless steel, ATAK sound, dual split rear exit, black chrome tips, bolt-on installation, and a no-drone guarantee. It fits select Ram 1500 V8 models, excluding Classic, so it is not a universal answer.
Start by verifying your Ram’s engine, cab, bed, and non-Classic status; choose another ranked system if your vehicle is outside that fitment.
Our Top Picks
Best OverallT-304 stainless steel, bolt-on installation, dual split rear exit, ATAK sound, and a no-drone guarantee are clearly listed for select Ram 1500 V8 models.
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Best Dual Rear ExitThis Sierra and Silverado 5.3L kit has dual rear exits, 409 stainless tubing, black 304 stainless tips, and installs into OEM hangers without welding.
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Best Exit ChoiceFor listed F-150 applications, its dual design offers side or rear exits, 409 stainless tubing, black tips, and installation into OEM hangers without welding.
View on Amazon- Best FlowFX Option Flowmaster 717857 FlowFX
- Best Aluminized Steel Flowmaster 17395 American Thunder
Compare Cat-Back Exhaust Options by Fitment and Design
| # | Product | Material | Weight | Compatible with Vehicle Type | Buy |
|---|---|---|---|---|---|
| 1 | 1. Borla 140753BCBest Overall | — | 52.9 lb | — | View on Amazon |
| 2 | 2. Rough Country 96011Best Dual Rear Exit | Stainless Steel | 62 lb | 2019-2024 4WD Chevy Silverado | View on Amazon |
| 3 | 3. Rough Country 96010Best Exit Choice | Stainless Steel | 68 lb | 2009-2014 2WD Ford F-1502009-2014 4WD | View on Amazon |
| 4 | 4. Flowmaster 717857 FlowFXBest FlowFX Option | Plastic | 47.4 lb | Truck | View on Amazon |
| 5 | 5. Flowmaster 17395 American ThunderBest Aluminized Steel | Plastic | 4 lb | Car | View on Amazon |
| 6 | 6. DNA Motoring CBE-CS09Short-bed Silverado or Sierra owners | — | — | Car | View on Amazon |
| 7 | 7. Auto Dynasty Silverado CatbackShort-bed Silverado performance upgrade | Stainless Steel | — | Compatible with Silverado Sierra 1500 2007-2013 | View on Amazon |
| 8 | 8. PHILTOP Tacoma Cat-BackTacoma V6 4.0L replacement | Stainless Steel | — | — | View on Amazon |
| 9 | 9. DNA Motoring Civic CatbackOlder Civic coupe and sedan | — | 24 lb | — | View on Amazon |
| 10 | 10. PHILTOP Lexus Cat-BackLexus IS250 and IS350 owners | — | 27.7 lb | — | View on Amazon |
Detailed Reviews: Best Cat Back Exhaust
Why it ranks #1: T-304 stainless steel, bolt-on installation, dual split rear exit, ATAK sound, and a no-drone guarantee are clearly listed for select Ram 1500 V8 models.
Borla’s ATAK muffler and no-drone guarantee define this T-304 stainless cat-back for specified 2019–2023 Ram 1500 V8 trucks. The dual split rear exit uses single 5-inch round black-chrome tips on each side, pairing an emphatic sound profile with a distinctive outlet arrangement for owners who want a clearly specified exhaust character.
The product description specifies a 2019 Ram 1500 5.7L 2WD or 4WD Crew Cab with a short 5-foot-7-inch bed, while the title gives broader 2019–2023 V8 coverage; it excludes Ram Classic. Confirm the vehicle against the detailed application. T-304 stainless steel and all-welded construction describe the system’s build, while bolt-on installation provides a stated mounting approach. The ATAK muffler and no-drone guarantee address sound character; the dual split rear exit and black-chrome tips define the outlet layout.
- T-304 stainless-steel construction
- All-welded construction
- Bolt-on installation
- ATAK muffler with no-drone guarantee
- Does not fit Ram Classic models.
Skip it if you own a Ram Classic; this Borla system explicitly excludes it, while the Rough Country 96010 lists 2009–2014 Ford F-150 fitment.
This is for Ram 1500 V8 owners seeking ATAK sound, a dual split rear exit, and bolt-on installation. Check the detailed cab, bed, engine, and model-year application carefully; Ram Classic is explicitly excluded.
Full product details
| Brand | Borla |
|---|---|
| Item Weight | 52.9 pounds |
| Item model number | 140753BC |
| Manufacturer | BORLA |
| Part Number | 140753BC |
| Model | Borla 140753BC |
| Dimensions | 24.02 x 5.12 x 6.3 inches |
| Additional Information | Important Information Proposition 65 Warning for California Consumers WARNING: This product can expose you to chemicals including styrene which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov Proposition 65 Warning for California Consumers WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov |

#2 · Best Dual Rear Exit
2. Rough Country 96011
- Material: Stainless Steel
- Weight: 62 lb
- Compatible with Vehicle Type: 2019-2024 4WD Chevy Silverado
Best for: DIY dual-exit Sierra setup.
Why it ranks #2: This Sierra and Silverado 5.3L kit has dual rear exits, 409 stainless tubing, black 304 stainless tips, and installs into OEM hangers without welding.
A dual rear-exit layout that installs into OEM hangers without welding is the practical draw of Rough Country’s cat-back for 2019–2024 Chevy and GMC Sierra applications. Its 16-gauge 409 stainless tubing, black muffler and clamps, and dual-wall 304 stainless black tips combine corrosion-resistant construction with a defined appearance and a home-installation approach.
Rough Country lists this system for 2019–2024 4WD Chevy Silverado applications and describes it for Chevy/GMC Sierra pickups with a 5.3L engine, so verify the exact vehicle against that stated scope. The OEM-hanger installation and no-welding design can simplify the work for a home installer. Corrosion-resistant 409 stainless steel, 16-gauge tubing, and black muffler and clamps specify the main construction; dual-wall 304 stainless tips finish the dual rear exits. The kit can retain OEM dual tips, according to the feature listing.
- Dual cat-back design with rear exit
- Installs into OEM hangers without welding
- 16-gauge 409 stainless-steel tubing
- Can retain OEM dual tips
- The listed vehicle scope specifies 4WD Silverado fitment and a 5.3L Sierra application.
Skip it if you need a system for a different engine or drivetrain than the listed application; the Flowmaster 717857 is specified for 4.3L and 5.3L Silverado/Sierra models.
This is aimed at owners seeking a dual rear-exit Sierra-style exhaust and a no-welding, OEM-hanger installation. Its listed 4WD Silverado and 5.3L Sierra scope makes exact vehicle configuration the essential fit consideration.
Full product details
| Brand | Rough Country |
|---|---|
| Color | Stainless |
| Compatible with Vehicle Type | 2019-2024 4WD Chevy Silverado |
| Included Components | (1) Drivers Side Mid Tube & Exit Tube, (1) Inlet Tube, Exhaust Extension Tube, (1) Muffler, (1) Passenger Side Mid Tube & Exit Tube, (2) Exit Tubes with Black Exhaust Tips |
| Item Weight | 62 pounds |
| Manufacturer | Rough Country |
| Part Number | 96011 |
| Manufacturer Warranty Description | Limited Lifetime |
| Material | Stainless Steel |
| Model Number | 96011 |
| Additional Information | Important information Safety Information "RC recommends a certified technician install lift systems. Knowledge of RC instructions, suspension procedures and post install checks are required. If a system is installed w/o knowledge and expertise it may impact the integrity/operating safety." |
Listed on Amazon as: Rough Country Dual Cat-Back Exhaust for 19-24 Chevy/GMC Sierra |5.3L – 96011
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#3 · Best Exit Choice
3. Rough Country 96010
- Material: Stainless Steel
- Weight: 68 lb
- Compatible with Vehicle Type: 2009-2014 2WD Ford F-1502009-2014 4WD
Best for: F-150 dual-exit flexibility.
Why it ranks #3: For listed F-150 applications, its dual design offers side or rear exits, 409 stainless tubing, black tips, and installation into OEM hangers without welding.
Side or rear exits give this Rough Country dual cat-back a choice of outlet layout for 2009–2014 Ford F-150 2WD and 4WD trucks. Corrosion-resistant 409 stainless-steel tubing, black muffler and clamps, and dual-wall 304 stainless black tips specify the materials, while OEM-hanger installation avoids welding.
The system is listed for 2009–2014 F-150 models with either 2WD or 4WD, making drivetrain coverage an explicit part of its fit. Its dual cat-back layout supports side or rear exits, giving buyers an outlet choice within the supplied configuration. The 16-gauge 409 stainless-steel tubing and 409 stainless black muffler and clamps provide the specified main construction, while dual-wall 304 stainless black tips finish the outlets. Installation uses OEM hangers and requires no welding, which suits a home-install workflow.
- Listed for 2009–2014 F-150 2WD and 4WD
- Dual cat-back layout with side or rear exits
- 16-gauge 409 stainless-steel tubing
- OEM-hanger installation without welding
- The listing specifies F-150 fitment only for 2009–2014 model years.
Skip it if you own an F-150 outside the listed 2009–2014 range; the Rough Country 96011 is listed for 2019–2024 Silverado applications.
This suits 2009–2014 F-150 owners who want a dual exhaust with side-or-rear exit flexibility and no-welding installation. The listed model-year range is the main fit boundary.
Full product details
| Brand | Rough Country |
|---|---|
| Color | Stainless |
| Compatible with Vehicle Type | 2009-2014 2WD Ford F-1502009-2014 4WD |
| Included Components | (2) 80 Deg. Exit Tubes, (2) (Black) Exhaust Tips, (7) Exhaust Clamps, Inlet Tube, Mid Tube, Exhaust Hanger Clamp, Extension Pipe, Muffler, Right Side Exit tube, Left Side Exit Tube, Left Side Down Tube, Poly Exhaust Isolator |
| Installation Type | Clamp-On |
| Item Weight | 68 pounds |
| Manufacturer | Rough Country |
| Part Number | 96010 |
| Manufacturer Warranty Description | Lifetime |
| Material | Stainless Steel |
| Model Number | 96010 |
| Additional Information | Important information Safety Information "RC recommends a certified technician install lift systems. Knowledge of RC instructions, suspension procedures and post install checks are required. If a system is installed w/o knowledge and expertise it may impact the integrity/operating safety." |
Listed on Amazon as: Rough Country Dual Cat-Back Exhaust for 2009-2014 F-150 2WD/4WD | V8-96010
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#4 · Best FlowFX Option
4. Flowmaster 717857 FlowFX
- Material: Plastic
- Weight: 47.4 lb
- Compatible with Vehicle Type: Truck
Best for: FlowFX Silverado and Sierra upgrade.
Why it ranks #4: The Silverado and Sierra kit lists full stainless construction, a straight-through Flow FX muffler, a 4.5-inch black ceramic-coated tip, and factory hanger locations.
A straight-through Flow FX muffler and 4.5-inch black ceramic-coated tip set this Flowmaster cat-back apart for listed 2014–2019 Classic Body Silverado and Sierra 1500 trucks. Full stainless-steel construction and use of factory hanger locations connect its material choice to a familiar mounting approach, while the stated tone is deep and powerful inside and outside.
Flowmaster lists compatibility with 2014–2019 Classic Body Chevy Silverado and GMC Sierra 1500 trucks, with the supplied kit description specifying 4.3L and 5.3L applications. Check the exact engine and body configuration against that scope. The straight-through Flow FX muffler is tied to the deep, powerful tone, and factory hanger locations support the stated installation layout. Full stainless-steel construction and a 4.5-inch black ceramic-coated tip define the material and outlet appearance; bolt-on installation is also specified.
- Full stainless-steel construction
- Straight-through Flow FX muffler
- Uses factory hanger locations
- 4.5-inch black ceramic-coated stainless-steel tip
- The listed application is limited to 2014–2019 Classic Body Silverado and Sierra 1500 trucks.
Skip it if you have a non-Classic Body truck or a different vehicle; the listing confines this Flowmaster kit to Classic Body Silverado and Sierra 1500 applications.
This fits owners of the listed Classic Body 2014–2019 Silverado or Sierra 1500 who want a straight-through muffler, full stainless construction, and a large black-coated tip. Engine and body configuration remain key fit checks.
Full product details
| Brand | Flowmaster |
|---|---|
| Color | Multicolor |
| Compatible with Vehicle Type | Truck |
| Included Components | Flowmaster 717857 Flowmaster FlowFX Cat-Back Exhaust System. Exhaust System Kit 14-18 SILVERADO/SIERRA 1500 5.3L CB S |
| Installation Type | Bolt-On |
| Item Weight | 47.4 pounds |
| Manufacturer | Flowmaster |
| Part Number | 717857 |
| Manufacturer Warranty Description | Warranty |
| Material | Plastic |
| Model Number | 717857 |

#5 · Best Aluminized Steel
5. Flowmaster 17395 American Thunder
- Material: Plastic
- Weight: 4 lb
- Compatible with Vehicle Type: Car
Best for: Classic Silverado dual-exit sound.
Why it ranks #5: This classic Silverado and Sierra system specifies mandrel-bent 16-gauge aluminized steel, a Super 40 muffler, and dual polished stainless tips.
A Super 40 Series muffler paired with dual 3-inch polished stainless tips gives the Flowmaster American Thunder kit its clearest identity. It is listed for 1999–2007 Classic Chevy Silverado and GMC Sierra 1500 4.8L or 5.3L Extended Cab short-bed trucks, and its moderate-to-aggressive exterior tone targets owners seeking a pronounced exhaust note.
Flowmaster specifies factory hanger locations and includes hangers and hardware, linking the installation approach to the truck’s existing mounting points and a more complete kit. Mandrel-bent 16-gauge aluminized-steel tubing forms the exhaust path, while the Super 40 Series muffler is dyno-tuned for performance. Dual 3-inch polished stainless tips provide the listed exit hardware. Fitment is narrow: the stated application is 1999–2007 Classic Silverado or Sierra 1500, 4.8L or 5.3L, Extended Cab short bed.
- Uses factory hanger locations
- Hangers and hardware included
- Mandrel-bent 16-gauge aluminized-steel tubing
- Dual 3-inch polished stainless-steel tips
- The tubing is aluminized steel rather than stainless steel.
Skip it if you want stainless tubing throughout; the Flowmaster 717857 lists full stainless-steel construction for its Silverado/Sierra application.
This suits owners of the specified 1999–2007 Classic Silverado or Sierra 1500 Extended Cab short-bed trucks who want dual polished tips and a moderate-to-aggressive tone. Aluminized-steel tubing is the material trade-off.
Full product details
| Brand | Flowmaster |
|---|---|
| Color | Multicolor |
| Compatible with Vehicle Type | Car |
| Included Components | Flowmaster 17395 Cat-back System – Dual Same Side Exit – American Thunder – Aggressive Sound |
| Item Weight | 4 pounds |
| Manufacturer | Flowmaster |
| Part Number | 17395 |
| Manufacturer Warranty Description | Check with the manufacturer |
| Material | Plastic |
| Model Number | 17395 |

#6
6. DNA Motoring CBE-CS09
- Compatible with Vehicle Type: Car
Best for: Short-bed Silverado or Sierra owners.
Why it ranks #6: It fits specified Silverado and Sierra crew or extended cab short beds and lists T-409 stainless construction with mandrel bends and TIG-welded flanges.
T-409 stainless steel and computerized mandrel bends give this DNA MOTORING cat-back a construction-focused profile for specified 2007–2013 Silverado and Sierra 1500 short-bed trucks. Its TIG-welded CNC flange is described as resisting pressure and corrosion, while the listing claims a 15–25 horsepower or low-end-torque increase alongside a deep, aggressive tone.
The application is specifically listed for Crew or Extended Cab short-bed 2007–2013 Chevy Silverado 1500 and GMC Sierra 1500 models, so body style matters as much as model year. T-409 stainless-steel tubing with computerized mandrel bends is tied to strength and durability; the TIG-welded CNC flange is described as resisting pressure and corrosion. Hardware and gaskets are included according to the listing, giving installers specified accompanying pieces. The maker also claims dyno-proven power or low-end-torque gains and smoother exhaust flow.
- T-409 stainless-steel construction
- Computerized mandrel-bent tubing
- TIG-welded CNC flange
- Hardware and gaskets are listed as included
- Fitment is limited to the listed Crew or Extended Cab short-bed trucks.
Skip it if you have a Silverado or Sierra with a different cab or bed configuration; this listing specifies short-bed Crew or Extended Cab models.
This fits truck owners whose 2007–2013 Silverado 1500 or Sierra 1500 matches the listed Crew or Extended Cab short-bed application. Consider its T-409 construction and flange details, but treat cab and bed fit as decisive.
Full product details
| Brand | DNA MOTORING |
|---|---|
| Compatible with Vehicle Type | Car |
| Included Components | 1 X Catback Exhaust System Hardware/Gaskets as shown |
| Manufacturer | DNA Motoring |
| Part Number | CBE-CS09-4853L-4DR |
| Manufacturer Warranty Description | Please contact the seller directly for warranty information for this product |
| Model Number | CBE-CS09-4853L-4DR |
Listed on Amazon as: DNA MOTORING CBE-CS09-4853L-4DR Stainless Steel Cat Back Exhaust System [Compatible with 07-13 Silverado 1500/07-13 Sierra 1500 Crew/Extended Cab Short Bed]
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#7
7. Auto Dynasty Silverado Catback
- Material: Stainless Steel
- Compatible with Vehicle Type: Compatible with Silverado Sierra 1500 2007-2013
Best for: Short-bed Silverado performance upgrade.
Why it ranks #7: This Silverado and Sierra kit specifies a 3-inch inlet and 4-inch outlet, but its listing says it is not CARB compliant and not legal for California emission models.
A 3-inch inlet paired with a 4-inch outlet gives this Auto Dynasty cat-back a clear dimensional distinction for compatible Silverado and Sierra 1500 short-bed trucks. Its racing-design exit system is presented as a way to improve exhaust-gas flow while adding an aggressive tone, with the listing claiming a 15–25 horsepower or low-end-torque increase.
The specified fit is limited to 2007–2013 Chevy Silverado 1500 and GMC Sierra 1500 Crew or Extended Cab models with a short bed, which helps narrow the application before installation. Stainless-steel construction and the 3-inch inlet connect the system’s material and pipe size to its intended exhaust-flow role. The 4-inch outlet provides a defined exit size, while the listing emphasizes an aggressive tone and claims increased power or low-end torque. It is not CARB compliant and is not legal for use in California emission models.
- Stainless-steel construction
- 3-inch inlet and 4-inch outlet
- Specified for 2007–2013 Silverado and Sierra 1500 short-bed Crew or Extended Cab
- Listing claims 15–25 horsepower or low-end-torque gains
- Not CARB compliant and not legal for California emission models.
Skip it if you need a CARB-compliant exhaust for a California emission model; this system is explicitly not legal for that use.
This suits Silverado or Sierra owners with the listed 2007–2013 Crew or Extended Cab short-bed configuration who want a stainless cat-back with an aggressive tone. California emission-model use is the firm boundary.
Full product details
| Brand | Auto Dynasty |
|---|---|
| Compatible with Vehicle Type | Compatible with Silverado Sierra 1500 2007-2013 |
| Inlet Connection Size | 3 inches |
| Manufacturer | Auto Dynasty |
| Part Number | AD-CBE-CS09-4853L-4DR-1 |
| Material | Stainless Steel |
| Outlet Connection Size | 4 inches |
| Additional Information | Important information |
Listed on Amazon as: Auto Dynasty 4" Catback Exhaust Tip System For 07-13 Silverado Sierra 1500
View on AmazonWhy it ranks #8: It is listed for select Tacoma V6 4.0L applications and specifies stainless steel plus a two-year manufacturer warranty, though the fitment years have a gap.
Fitment for 2005–2009 and 2011–2015 Toyota Tacoma V6 4.0L models makes this PHILTOP cat-back particularly specific about its intended truck. The listing identifies stainless-steel construction and larger pipes, low-restriction mufflers, and tuned resonators as components of its exhaust-flow and noise approach, giving Tacoma owners a clear application to evaluate.
The fitment explicitly skips the 2010 model year, listing 2005–2009 and 2011–2015 Tacoma V6 4.0L applications instead. That year split is important when matching the system to a truck. Stainless-steel construction is specified, while the listed larger pipes, low-restriction mufflers, and tuned resonators connect the exhaust layout to its stated flow and noise goals. The package is identified as one cat-back exhaust, and its dimensions are 45.28 by 10.24 by 10.63 inches, useful when planning handling and storage.
- Listed fitment for Tacoma V6 4.0L models
- Covers 2005–2009 and 2011–2015 model years
- Stainless-steel construction
- Describes larger pipes, low-restriction mufflers, and tuned resonators
- The listed fitment excludes 2010 Tacoma models.
Skip it if you own a 2010 Tacoma; the listed year ranges omit it, while the Flowmaster 17395 is specified for older Silverado and Sierra trucks.
This suits Tacoma V6 4.0L owners within the listed 2005–2009 or 2011–2015 ranges who want stainless construction and a flow-and-noise-focused exhaust layout. The excluded 2010 model year is a clear boundary.
Full product details
| Brand | PHILTOP |
|---|---|
| Included Components | 1x Catback Exhaust |
| Item Dimensions | 45.28 x 10.24 x 10.63 inches |
| Dimensions | 45.28 x 10.24 x 10.63 inches |
| Manufacturer | PHILTOP |
| Part Number | 5996ESK0660US |
| Manufacturer Warranty Description | 2 Year Manufacturer |
| Material | Stainless Steel |
| Model Number | Cat-Back Systems |
Listed on Amazon as: PHILTOP Cat-Back System Fit for 2005-2009 2011-2015 Toyota Tacoma V6 4.0L
View on AmazonWhy it ranks #9: This system targets 1992–2000 Civic coupes and sedans and lists T-304 stainless steel with computerized mandrel bends, making its narrow fitment decisive.
T-304 stainless steel with computerized mandrel bends is the defining construction combination on this DNA MOTORING system, intended for 1992–2000 Honda Civic coupes and sedans. The listing links that tubing and its TIG-welded CNC-machined flange to strength and durability, while claiming 15–25 horsepower or low-end-torque gains and a deep, smooth, aggressive tone.
The stated Civic fit covers 1992–2000 coupes and sedans, making the vehicle generation and body style central to the buying decision. T-304 stainless steel and computerized mandrel bends are specified for strength and durability, while the TIG-welded CNC flange is described as resisting pressure and corrosion. DNA MOTORING also claims a dyno-proven 15–25 horsepower or low-end-torque increase. Hardware and gaskets are listed as included, which gives the installer key accompanying components for the exhaust-system job.
- T-304 stainless-steel construction
- Computerized mandrel bends
- TIG-welded CNC-machined flange
- Hardware and gaskets are listed as included
- Fitment is limited to 1992–2000 Honda Civic coupes and sedans.
Skip it if you own a Civic outside the listed 1992–2000 coupe or sedan application; the stated fitment does not cover it.
This is for owners of a 1992–2000 Honda Civic coupe or sedan who want stainless construction, mandrel bends, and a listed performance-gain claim. The stated generation and body-style fit are the key boundary.
Full product details
| Brand | DNA MOTORING |
|---|---|
| Included Components | 1 X Catback Exhaust Hardware/gaskets as shown |
| Item Weight | 24 pounds |
| Manufacturer | DNA Motoring |
| Part Number | CBE-HC922-NRT |
| Manufacturer Warranty Description | Please contact the seller directly for warranty information for this product |
| Model Number | CBE-HC922-NRT |
Listed on Amazon as: DNA MOTORING CBE-HC922-NRT Stainless Steel Cat Back Exhaust System [Compatible with 92-00 Honda Civic Coupe/Sedan]
View on AmazonWhy it ranks #10: It is listed for 2006–2010 Lexus IS250 and IS350, but provides fewer concrete system specifications than most alternatives in this roundup.
Vehicle-specific compatibility for 2006–2010 Lexus IS250 and IS350 models is the key starting point for this PHILTOP cat-back system. Its stainless-steel construction and listed low-restriction muffler and tuned-resonator approach point to buyers seeking a replacement exhaust that addresses sound and flow, while keeping the intended Lexus application clearly defined.
The fitment listing names 2006–2010 IS250 and IS350 models, giving owners a specific application to check against their car before planning an exhaust change. PHILTOP identifies the system as stainless steel and describes larger pipes, low-restriction mufflers, and tuned resonators as features that affect exhaust flow and noise. At 27.7 pounds and 49.21 inches long, it is a substantial part to handle during shipping and installation, so allow for space to stage the assembly.
- Listed compatibility with 2006–2010 Lexus IS250 and IS350
- Stainless-steel construction
- Describes larger pipes and low-restriction mufflers
- Tuned resonators are specified as part of the sound approach
- The listing does not provide an installation method or a quantified power-gain figure.
Skip it if you need a stated bolt-on method or quantified power gain; the DNA MOTORING Civic system lists a dyno-proven gain claim.
Choose this for a 2006–2010 Lexus IS250 or IS350 owner seeking a stainless cat-back with larger pipes, low-restriction mufflers, and tuned resonators. Its listing does not specify installation details or a measured performance gain.
Full product details
| Brand | PHILTOP |
|---|---|
| Item Weight | 27.7 pounds |
| Item model number | Cat-Back Systems |
| Manufacturer | PHILTOP |
| Part Number | 4450ESK073MUS |
| Model | Cat-Back Systems |
| Dimensions | 49.21 x 7.87 x 23.23 inches |
Listed on Amazon as: PHILTOP Cat-Back System for 2006-2010 Lexus IS250/IS350
View on AmazonAvoiding a cat-back fitment mismatch
The most consequential fitment mistake is matching only the model name while overlooking engine, cab, bed, or trim exclusions. These listings show why: the Borla system excludes the Ram Classic and describes a V8 application with specific cab and bed details, while the Silverado and Sierra systems may specify crew or extended cab short beds. The Tacoma PHILTOP listing names 2005–2009 and 2011–2015 V6 4.0L applications, leaving an apparent gap rather than confirming fitment for every intervening model year.
Before ordering, compare the listing with your vehicle’s exact year, engine, cab, bed, drivetrain, and trim. Do not infer compatibility from a shared brand or model family.
If a vehicle detail is missing from the supplied fitment description, verify it with the seller or manufacturer rather than assuming the system will bolt up.
Sound claims and emissions are separate checks
A sound description does not establish emissions legality, and a cat-back label alone does not prove that a system is legal for every location. The Auto Dynasty Silverado/Sierra listing explicitly says it is non-CARB compliant and not legal for California emission models, so buyers in California should treat that warning as a decisive limitation. Sound descriptions also differ: Flowmaster 17395 lists a moderate to aggressive exterior tone, while the Borla system specifies ATAK sound and a no-drone guarantee.
These are distinct product claims, not a standardized volume scale or a promise that every cabin will sound identical. Rough Country describes a guttural, aggressive sound, but the supplied specifications do not give a measured sound level.
Check local rules and the exact system’s documentation, and consider how the stated tone and exit layout fit your use before choosing.
How to Choose a Cat-Back Exhaust
Vehicle fitment
Start by matching the full vehicle configuration, not just the model name. The products span 1992–2000 Honda Civic coupe or sedan, 2006–2010 Lexus IS250/IS350, select Tacoma V6 4.0L years, and multiple Silverado, Sierra, F-150, and Ram applications. Some truck listings narrow compatibility further to cab and bed combinations; the Borla listing excludes Ram Classic.
Choose the most precisely documented match for your exact vehicle. A Civic or Lexus owner should focus on the dedicated car-fitment entries, while truck owners should confirm engine, drivetrain, cab, and bed before considering an exhaust designed for a related pickup.
Material and construction
Compare the stated tubing and system materials, since the listings range from stainless steel grades to aluminized steel. DNA Motoring’s Civic system specifies T-304 stainless steel, while its Silverado/Sierra system lists T-409 stainless; Rough Country specifies 409 stainless tubing and Flowmaster 17395 lists 16-gauge aluminized steel. Borla also specifies T-304 stainless construction.
These details distinguish the offered builds but do not establish a direct durability ranking under every climate or use condition. If stainless construction is a priority, focus on systems that state a stainless grade or construction; buyers considering the Flowmaster aluminized-steel option should weigh that listed material against their own conditions and maintenance expectations.
Exit layout and installation details
Choose an exit layout and installation approach that suit your truck and preferences. Rough Country 96011 specifies dual rear exit, while Rough Country 96010 offers side or rear exits; Borla lists a dual split rear exit, and Flowmaster 17395 has a dual same-side exit. Installation details vary too: both Rough Country kits say they use OEM hangers and require no welding, while Borla lists bolt-on installation and Flowmaster 17395 includes hangers and hardware.
A buyer who wants a choice of truck exit positions may prefer 96010; someone seeking a specified rear-exit setup can compare 96011 or Borla, provided fitment matches. Confirm that the supplied kit includes what you need for your vehicle.
Which cat-back exhaust fits my vehicle?
Choose by exact fitment first. For a listed Ram 1500 V8 that is not a Classic, Borla 140753BC leads with T-304 stainless, bolt-on installation, and a no-drone guarantee. Silverado or Sierra owners should compare Rough Country 96011 for a 5.3L dual rear exit, Flowmaster 717857 FlowFX for its straight-through muffler and full stainless construction, or DNA Motoring CBE-CS09 for specified crew or extended cab short beds.
F-150 owners can consider Rough Country 96010 if its 2009–2014 fitment matches and side-or-rear exits appeal. For a classic Silverado/Sierra setup, Flowmaster 17395 lists a Super 40 muffler and dual same-side tips.
Civic, Lexus, and Tacoma owners should start with their dedicated fitment listings and verify every vehicle detail before ordering.
Related Buying Guides
Frequently Asked Questions
How can I confirm a cat-back exhaust will fit my exact engine, cab, and bed configuration?
Match the listing to your vehicle’s year, make, model, engine, cab, and bed before ordering. Check exclusions too: the Borla listing, for example, excludes Ram 1500 Classic models. If a listing does not specify your configuration, contact the seller or manufacturer with your vehicle details rather than assuming fitment.
Will a louder cat-back exhaust cause cabin drone or affect emissions compliance?
Sound and compliance depend on the specific system and vehicle. The Borla listing states ATAK sound and a no-drone guarantee, but that claim applies to that system, not every option here. The supplied product details do not establish emissions compliance, so check local requirements and confirm the system’s status for your vehicle before purchase.
Can I install a cat-back exhaust at home, or should I use a professional?
Home installation may suit someone comfortable working on vehicle exhaust systems, but the supplied listings do not describe every system’s installation steps or required tools. Borla specifically identifies its system as bolt-on. Review the instructions for your selected product and seek professional installation if you lack suitable equipment or are uncertain about safe fitment.
Which details should I compare beyond vehicle fitment?
Compare the construction material, muffler or sound description, exit layout, and tip details where the listing provides them. For example, the Flowmaster 717857 specifies a straight-through FlowFX muffler and full stainless construction, while the Borla 140753BC lists T-304 stainless and dual split rear exit. Do not assume unlisted details.
What should I do if my vehicle is not covered by a listed fitment?
Do not order based on a similar model or engine alone. The products shown cover specific vehicle ranges and configurations, including stated exclusions and cab or bed requirements. Check for a dedicated listing for your exact vehicle, then verify its year, engine, cab, and bed details with the seller or manufacturer.
Final Words
Choose by exact vehicle fitment first, then compare construction, sound description, and exit layout. For a non-Classic Ram 1500 V8 within its listed fitment, Borla 140753BC is the lead pick; other owners should use the matching Silverado/Sierra, F-150, Civic, Lexus, or Tacoma listing and verify every configuration detail. If your vehicle falls outside a listing’s stated fitment, do not assume compatibility—confirm before ordering.





