A strong B-series throttle body delivers a suitable airflow increase, dependable cable operation, and fitment that matches your Honda or Acura engine setup. This roundup suits drivers and builders comparing 66mm, 68mm, 70mm, and 74mm options for B, D, F, and H-series applications. The listings range from complete kits with TPS and MAP sensors to simpler cast-aluminum replacement-style units.
Skunk2, BLOX Racing, PQY, APFAITH, LSSOCH, goodbest, and OKAY MOTOR products differ in bore size, included hardware, sensor coverage, and adjustment features. The best choice depends less on the largest opening and more on your intake-manifold compatibility, transmission requirements, throttle-cable needs, and whether your current sensors are reusable.
For most modified B-series applications, a 70mm throttle body is the most broadly represented option, with choices from Skunk2 Racing, BLOX RACING, PQY, APFAITH, LSSOCH, goodbest, and OKAY MOTOR. Choose a complete kit when included TPS and MAP sensors simplify replacement, or select Skunk2’s 70mm Pro Series for forged 6061-T6 aluminum, sealed ball bearings, a brass throttle plate, gasket, and hardware. A 66mm or 68mm unit favors a smaller step, while a 74mm BLOX option targets buyers prioritizing the largest listed bore.
Honda B Series Throttle Bodies Compared
How We Compared These Products
We compared dimensions, capacity, materials, compatibility, included components, and care requirements across many Amazon listings. These details matter because the product must fit the available space, intended use, setup requirements, and maintenance routine. After examining the wider field, we selected 10 products from PQY, APFAITH, Skunk2 Racing, LSSOCH, BLOX RACING, goodbest, Blox, and OKAY MOTOR.
The shortlist includes products such as PQY 70MM Intake Manifold Throttle Body Kit with TPS & MAP Sensor Compatible with Honda, APFAITH 309-05-1050 70mm Throttle Body W/Pre-Calibrated TPS Compatible with Honda Civic, and Skunk2 Racing 309-05-0050 Pro Series Hard Anodized 70mm Throttle Body for Honda B. Every recommendation is tied to information stated for that specific product; unclear or missing features were treated as unknown rather than filled with assumptions.
Detailed Reviews: Best B Series Throttle Body
1. 70MM Intake Manifold Throttle Body Kit with TPS & MAP Sensor Compatible with Honda B/D/H/F Series B16 B18 309-05-1050 309051050
Best for: Performance tuning enthusiasts.
This 70mm throttle body kit features larger dimensions than stock, enabling improved airflow for enhanced engine performance. It includes essential TPS and MAP sensors for accurate readings and comes with idle adjustment screws for fine-tuning, aiming for noticeable WHP gains.
Constructed from high-quality cast aluminum, this PQY throttle body is designed for compatibility with a wide range of Honda B, D, H, and F-series engines. Its larger diameter facilitates increased air intake, contributing to potential horsepower improvements. The inclusion of TPS and MAP sensors ensures proper engine management and operation.
Product Details
| Brand | PQY |
|---|---|
| Item Weight | 1.81 pounds |
| Item model number | TTB92 |
| Manufacturer | PQYRACING |
| Part Number | TTB92 |
| Package Dimensions | 7.87 x 6.42 x 4.49 inches |
Pros
- Larger than stock for improved airflow
- Includes TPS and MAP sensors
- Idle adjustment screws for fine-tuning
- Cast aluminum construction for durability
Cons
- May require professional installation
Ideal for tuners seeking enhanced engine output on compatible Honda B/D/H/F series engines, ensure compatibility with your specific engine code before purchase.
2. 309-05-1050 70mm Throttle Body W/Pre-Calibrated TPS Compatible with Honda Civic SI Crx Acura Integras Gsr B D F H-Series Engines 70mm Performance Cable Throttle Body Replaces# 309-05-1050
Best for: Direct replacement upgrade.
This 70mm throttle body, a direct replacement for part number 309-05-1050, is constructed from reinforced, corrosion-resistant, and high-temperature resistant materials. It aims to resolve issues with failing older sensors and ensures reliable performance for various Honda and Acura B, D, F, and H-series engines.
Engineered for compatibility with Honda Civic SI, CRX, and Acura Integras with B, D, F, and H-series engines, this throttle body offers a performance upgrade. Its reinforced construction enhances durability against heat and corrosion. Each unit is inspected before shipping to ensure it meets high-quality standards, providing a reliable component for your engine.
Product Details
| Brand | APFAITH |
|---|---|
| Item Weight | 1.83 pounds |
| Item model number | 309-05-1050 |
| Manufacturer | APFAITH |
| Part Number | 309-05-1050 |
| Model | 70mm Throttle Body 309-05-1050 |
| Package Dimensions | 7.87 x 6.3 x 4.35 inches |
Pros
- Reinforced, high-temperature resistant materials
- Direct replacement for 309-05-1050
- Corrosion-resistant construction
- Pre-inspected for quality assurance
Cons
- Specific fitment details may vary by sub-model
Suitable for owners of compatible Honda/Acura B/D/F/H-series vehicles needing a reliable throttle body replacement, verify exact model year fitment for optimal integration.
3. Skunk2 Racing 309-05-0050 Pro Series Hard Anodized 70mm Throttle Body for Honda B, D, H, F-Series Engines
Best for: Performance engine builders.
The Skunk2 Racing Pro Series 70mm Throttle Body is CNC machined from forged billet aluminum for superior strength and durability. Its hard anodized finish provides excellent corrosion resistance, while a precision-machined brass throttle plate and sealed ball bearings ensure smooth, consistent operation for performance applications.
This 70mm throttle body is designed for Honda B, D, H, and F-series engines, offering a significant airflow increase for modified setups. The forged billet aluminum construction ensures robustness, and the hard anodizing protects against corrosion. Sealed ball bearings contribute to smooth throttle plate movement, enhancing responsiveness and performance.
Product Details
| Brand | Skunk2 Racing |
|---|---|
| Item Weight | 2.59 pounds |
| Item model number | 309-05-0050 |
| Manufacturer | Skunk2 |
| Part Number | 309-05-0050 |
| Model | 309-05-0050 |
Pros
- CNC machined forged billet aluminum
- Hard anodized for corrosion resistance
- Precision brass throttle plate
- Sealed ball bearings for smooth operation
Cons
- Proposition 65 warning applies
A premium choice for performance enthusiasts with modified Honda B/D/H/F-series engines aiming for maximum power output, consider emissions regulations in your region.
4. Skunk2 Racing 309-05-1030 Alpha Series Silver 66mm Throttle Body for Honda B, D, H, F-Series Engines
Best for: Street performance enthusiasts.
The Skunk2 Racing Alpha Series 66mm Throttle Body is precision die-cast from aluminum, offering a balance of performance and reliability. It features a brass throttle plate and sealed ball bearings for smooth operation, along with idle adjustment screws for fine-tuning engine idle characteristics.
Designed for Honda B, D, F, and H-series engines, this 66mm throttle body is compatible with the OEM throttle cable for straightforward integration. The die-cast aluminum construction provides durability, while the brass throttle plate ensures precise air control. Idle adjustment screws allow for fine-tuning, optimizing engine performance and drivability.
Product Details
| Brand | Skunk2 Racing |
|---|---|
| Item Weight | 1.9 pounds |
| Item model number | 309-05-1030 |
| Manufacturer | Skunk2 |
| Part Number | 309-05-1030 |
| Model | 309-05-1030 |
Pros
- Precision die-cast aluminum construction
- Brass throttle plate for control
- Sealed ball bearings for smooth action
- Idle adjustment screws included
Cons
- Manual transmission only fitment
A solid option for Honda B/D/F/H-series manual transmission vehicles seeking improved throttle response, ensure your vehicle is manual before purchasing.
5. 70MM Throttle Body With Sensor 309051050 309-05-1050 Compatible With Acura Integra Civic 1.6L B/D/H/F Series Civic del Sol Prelude S2000 GSR B D 1.8L 2.2L
Best for: Honda/Acura engine upgrades.
This 70mm throttle body, identified by part numbers 309051050 and 309-05-1050, is designed for a broad range of Honda and Acura B, D, H, and F-series engines. It aims to improve engine breathing and performance by increasing airflow into the intake manifold.
Compatible with numerous Acura Integra and Honda Civic models, this throttle body is a direct upgrade for enhanced engine performance. Its 70mm bore allows for greater air volume compared to stock units, potentially leading to increased horsepower and torque. The unit is designed to integrate with existing sensor setups.
Product Details
| Brand | LSSOCH |
|---|---|
| Item Weight | 1.85 pounds |
| Item model number | 309051050,309-05-1050 |
| Manufacturer | LSSOCH |
| Part Number | 309051050,309-05-1050 |
| Model | 70MM Throttle Body With Sensor |
| Package Dimensions | 8.07 x 6.3 x 4.53 inches |
Pros
- 70mm bore for increased airflow
- Replaces 309051050
- Wide compatibility with Honda/Acura models
- Designed for performance enhancement
Cons
- Sensor compatibility may vary
Recommended for Honda/Acura B/D/H/F-series engine owners looking for a performance boost, confirm sensor compatibility with your specific vehicle setup.
6. Automotive B,D,H,F-Series Tuner Series 70mm, Cast Aluminum Throttle Body
Best for: Performance engine builders.
The BLOX RACING Tuner Series 70mm Throttle Body is crafted from cast aluminum, offering a durable and performance-oriented upgrade for Honda B, D, H, and F-series engines. This component is designed to improve airflow and support enhanced engine performance in modified vehicles.
This 70mm cast aluminum throttle body is engineered to provide increased airflow to the engine, supporting performance modifications. Its robust construction ensures reliability under demanding conditions. The unit includes a gasket for proper sealing during installation, making it a straightforward upgrade for compatible Honda B, D, H, and F-series engines.
Product Details
| Brand | BLOX RACING |
|---|---|
| Color | Silver |
| Included Components | B,D,H,F-Series Tuner Series 70mm, Cast aluminum throttle body |
| Item Weight | 1.8 pounds |
| Manufacturer | Blox |
| Material | Aluminum |
| Model | BXIM-00213 |
Additional Product Information
| Warranty Description | Manufacturer Warranty |
|---|
Pros
- Cast aluminum construction
- 70mm diameter for increased airflow
- Durable build for performance use
- Includes gasket for installation
Cons
- Proposition 65 warning applies
A suitable choice for Honda B/D/H/F-series engine owners focused on performance tuning, verify specific engine compatibility for optimal results.
7. New 70mm Intake Manifold Throttle Body Compatible With Honda B16 B17 B18 B20 D15 D16 F20 F22 H22 H23 Engine Alpha Series Replace # 309-05-1050
Best for: Performance engine upgrades.
This new 70mm intake manifold throttle body is designed as an Alpha Series replacement for part number 309-05-1050. It is compatible with a wide array of Honda B, D, F, and H-series engines, aiming to enhance airflow and support increased power output for modified applications.
Engineered for compatibility with numerous Honda and Acura engines, including B16, B18, D16, H22, and H23 series, this 70mm throttle body facilitates greater air intake. Its design supports performance enhancements by allowing more air into the combustion chamber, contributing to potential horsepower gains on modified engines.
Product Details
| Brand | goodbest |
|---|---|
| Compatible with Vehicle Type | Car |
| Included Components | No |
| Installation Type | Bolt-On |
| Item Weight | 1 kg |
| Manufacturer | Goodbest |
| Part Number | 70mm Throttle Body |
Additional Product Information
| Manufacturer Warranty Description | 180 days warranty |
|---|---|
| Model Number | 70mm Throttle Body |
Pros
- 70mm bore for enhanced airflow
- Alpha Series design
- Wide engine compatibility
- Supports performance gains
Cons
- Installation may require technical knowledge
A good option for Honda/Acura B/D/F/H-series engine owners seeking improved performance, ensure your specific engine variant is listed for compatibility.
8. Blox Racing Tuner Series Throttle Body – B/D/F/H-Series 74mm
Best for: High-performance engine builds.
The BLOX Racing Tuner Series 74mm Throttle Body is a performance upgrade crafted from high-quality cast aluminum for Honda B, D, H, and F-series engines. Its larger 74mm diameter is designed to significantly improve airflow compared to factory units, supporting substantial performance gains.
Manufactured from durable cast aluminum, this 74mm throttle body is built to withstand the demands of performance engines. It offers improved airflow capabilities, which can lead to increased horsepower and torque when integrated into a modified engine setup. This component is specifically designed for B, D, H, and F-series Honda engines.
Product Details
| Brand | Blox |
|---|---|
| Item Weight | 2 pounds |
| Item model number | BXIM-00214 |
| Manufacturer | Blox |
| Part Number | BXIM-00214 |
| Model | BXIM-00214 |
| Dimensions | 6 x 6 x 5 inches |
Pros
- 74mm diameter for maximum airflow
- High-quality cast aluminum construction
- Designed for performance enthusiasts
- Durable and robust build
Cons
- May require ECU tuning for optimal performance
Targeted at serious performance builders with Honda B/D/F/H-series engines needing maximum airflow, ECU tuning is recommended for full benefit.
9. OKAY MOTOR 70mm Intake Manifold Throttle Body with TPS MAP Sensor for Honda B/D/F/H Engine Alpha Series 309-05-1050 309051050
Best for: Performance engine upgrades.
This 70mm intake manifold throttle body from OKAY MOTOR includes both TPS and MAP sensors, designed for Honda B, D, F, and H-series engines. It aims to provide a performance upgrade by increasing airflow and ensuring accurate sensor readings for optimal engine management.
The OKAY MOTOR 70mm throttle body is engineered to enhance engine performance by allowing more air into the intake manifold. Its inclusion of TPS and MAP sensors ensures proper electronic control and monitoring. This unit is designed to be compatible with Honda B, D, F, and H-series engines, supporting performance-oriented builds.
Product Details
| Brand | OKAY MOTOR |
|---|---|
| Item Weight | 1.7 pounds |
| Item model number | 309-05-1050 |
| Manufacturer | Okay Motor Products Inc. |
| Part Number | TBI-7007 |
| Model | Throttle Body |
| Package Dimensions | 7.5 x 6 x 4.5 inches |
Pros
- Includes TPS and MAP sensors
- 70mm bore for increased airflow
- Designed for Honda B/D/F/H engines
- Supports performance upgrades
Cons
- Specific fitment details not provided
A practical choice for Honda B/D/F/H-series engine owners seeking an airflow upgrade with integrated sensors, verify exact fitment for your application.
10. Blox Racing Tuner Series Throttle Body – B/D/F/H-Series 68mm
Best for: Performance engine builds.
The Blox Racing Tuner Series 68mm Throttle Body is constructed from cast aluminum, offering a performance-oriented upgrade for Honda B, D, F, and H-series engines. Its 68mm diameter is designed to improve airflow over stock components, supporting enhanced engine performance in modified vehicles.
This 68mm cast aluminum throttle body from Blox Racing is engineered to enhance airflow for Honda B, D, F, and H-series engines. Its robust construction provides durability for performance applications. The unit is designed to facilitate increased air intake, contributing to improved engine performance and responsiveness in modified vehicles.
Product Details
| Brand | Blox |
|---|---|
| Item Weight | 1.9 pounds |
| Item model number | BXIM-00212 |
| Manufacturer | Blox Racing |
| Part Number | BXIM-00212 |
| Model | BXIM-00212 |
Pros
- Cast aluminum construction
- 68mm diameter for improved airflow
- Durable build for performance use
- Designed for B/D/F/H-series engines
Cons
- Proposition 65 warning applies
Suitable for Honda B/D/F/H-series engine owners looking for a moderate airflow increase, confirm compatibility with your specific engine and modification plans.
What Buyers Often Overlook
B-series throttle-body sizing and airflow trade-offs
The listed bore sizes create a practical progression: 66mm, 68mm, 70mm, and 74mm. A 66mm Skunk2 Alpha Series is the smallest option in this roundup and includes idle adjustment screws, while BLOX offers 68mm and 70mm cast-aluminum Tuner Series models. The 70mm size appears across the widest range of products, including complete sensor-equipped kits and performance-oriented designs.
BLOX’s 74mm model provides the largest opening listed, but a larger bore is not automatically the best match for every engine or intake manifold. PQY specifically describes its 70mm unit as larger than stock and advertises potential 12–15 WHP gains, but that claim is product-provided rather than an independent test result.
Match the throttle-body diameter and mounting pattern to the manifold and engine build instead of choosing by diameter alone.
The Key Product Trade-Off
Fitment, sensors, and construction details to verify
Fitment depends on more than a B-series label: verify the exact engine family, intake-manifold interface, throttle cable, sensors, and transmission requirement. The products list compatibility across various B, D, F, and H-series engines, but the 66mm Skunk2 Alpha Series is specifically marked manual transmission only. PQY and OKAY MOTOR list TPS and MAP sensors, while APFAITH lists a pre-calibrated TPS; several other products do not clearly include both sensors.
Skunk2’s 70mm Pro Series includes a gasket and hardware, uses forged 6061-T6 aluminum, a machined brass plate, and sealed ball bearings. Other choices use cast aluminum, including the BLOX and PQY models.
Check whether your installation needs a gasket, hardware, sensor replacement, idle adjustment, or cable compatibility before ordering.
Best B Series Throttle Body: Buyer's Guide
Fit, Dimensions, and Compatibility
Compare the listed dimensions with the intended counter, cabinet, appliance, storage, or installation space. Confirm model compatibility and connection requirements where they are supplied. A useful feature cannot compensate for a product that does not physically fit or work with the buyer’s existing setup.
Capacity, Output, and Operating Format
Match listed capacity, volume, output, and operating mode to the actual household or work routine. Larger figures can support heavier use, while a smaller format may be easier to place and maintain. Treat daily output, immediate storage, and container capacity as separate specifications when the listing distinguishes them.
Materials, Construction, and Care
Use the listed materials and care instructions to judge cleaning effort, storage conditions, and compatibility with the intended use. Dishwasher, freezer, food-contact, or weather-related claims are included only when supplied for that product. Check whether routine care fits the way the product will be used.
Included Components and Setup Needs
Review the included components before planning installation or first use. Hoses, adapters, lids, paddles, bowls, brushes, controls, and manuals vary by listing. Confirm power, water, assembly, or accessory requirements from the supplied product information rather than assuming that separately pictured parts are included.
Which Should You Choose?
Choose a 70mm model if you want the broadest selection and your manifold and engine setup support that opening. Pick PQY or OKAY MOTOR when included TPS and MAP sensors are important, and consider APFAITH when a pre-calibrated TPS is the priority. Choose Skunk2 Racing’s 70mm Pro Series for its documented forged 6061-T6 construction, sealed ball bearings, brass throttle plate, gasket, and hardware.
A 66mm Skunk2 Alpha Series suits buyers seeking a smaller bore with idle adjustment screws, provided the vehicle has a manual transmission. BLOX’s 68mm and 70mm cast-aluminum options cover intermediate and common upgrade sizes, while the 74mm model is for buyers whose manifold and engine combination can accommodate the largest listed bore.
Quick Buying Checklist
- Confirm the complete dimensions against the available space.
- Verify model, accessory, connection, and appliance compatibility.
- Match capacity or output to the expected amount of use.
- Compare materials and care instructions with the maintenance routine.
- Check the included components before planning setup or first use.
- Confirm listed power, water, storage, or installation requirements where applicable.
Frequently Asked Questions
What is the primary benefit of a larger throttle body?
A larger throttle body generally allows more air to enter the engine, which can lead to increased horsepower and torque. This is especially noticeable in modified engines designed to take advantage of the increased airflow. It’s a common upgrade for performance enthusiasts seeking better engine breathing.
Are these throttle bodies compatible with various Honda engine series?
Yes, these throttle bodies are designed for compatibility with Honda’s B, D, H, and F-series engines. This broad compatibility makes them suitable for a wide range of popular Honda and Acura models, including various Civic, Integra, and Prelude applications.
Do I need to purchase sensors separately?
Some throttle body kits include pre-calibrated TPS and MAP sensors, offering a complete bolt-on solution. However, other models may not include sensors, requiring you to transfer existing ones or purchase them separately. Always check the product description for included components.
What is the difference between 66mm, 68mm, 70mm, and 74mm throttle bodies?
The numbers refer to the bore diameter of the throttle body. Larger diameters allow for greater airflow. The optimal size depends on the engine’s displacement and modifications.
Smaller sizes might be suitable for stock or lightly modified engines, while larger ones are for more aggressive builds.
What does 'cable throttle body' mean?
A cable throttle body utilizes a physical cable connected to the accelerator pedal to open the throttle plate. This is in contrast to ‘drive-by-wire’ systems. Cable-actuated models offer a direct, mechanical connection, often preferred by tuners for their responsiveness.
Final Words
Selecting the right throttle body involves matching its size and features to your specific Honda B, D, H, or F-series engine build. For a straightforward upgrade with sensors included, consider the 70mm kits. If you’re aiming for maximum airflow on a performance-oriented engine, larger options like the 74mm might be suitable.
Always verify compatibility with your engine’s requirements.
