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  3. AFE POWER 46-37001

AFE POWER 46-37001 Advanced Flow Engineering Bullet Throttle 802959461198 Body Spacer

fits model: Si, Civic. make: Honda. year: 2008–2012.

46-37001 Afe Power Advanced Flow Engineering For Silver Bullet Throttle Body Spacer 12 Honda Civic Si / 08-12

( Brand: Afe Power ), ( Type: Fuel Injection Throttle Body Spacer ), ( Manufacturer Part Number: 46-37001 ), ( Performance Part: Yes ), ( UPC: 802959461198 )

Review AFE POWER Advanced Flow Engineering Silver Bullet Throttle Body Spacer Honda fits CIVIC SI 2008–2012

The AFE Power Advanced Flow Engineering 46-37001 is a bullet throttle body spacer designed specifically for the Honda Civic SI models from 2008 to 2012. This performance part is engineered to enhance the airflow dynamics of your vehicle's intake system, ultimately leading to improved engine performance and power delivery.

This throttle body spacer is made from high-quality, 6061-T6 billet aluminum, ensuring durability and strength. The CNC-machined construction guarantees a precise fit and finish, ensuring a secure installation on your vehicle.

The AFE Power 46-37001 spacer features a flat, symmetrical design that eliminates the tapered shape of the OEM throttle body. This design allows for a more uniform airflow distribution across the entire intake system, which can lead to increased horsepower and torque gains.

Moreover, the use of this throttle body spacer can reduce the intake system's restriction, allowing the engine to breathe more freely. This results in improved throttle response, making your vehicle more responsive and agile when driving.

Additionally, the AFE Power 46-37001 bullet throttle body spacer comes with a polished finish that not only looks great but also helps to protect the aluminum from corrosion and wear. The spacer also comes with all necessary mounting hardware for a hassle-free installation process.

Overall, the AFE Power Advanced Flow Engineering 46-37001 bullet throttle body spacer is an excellent choice for Honda Civic SI owners looking to increase engine performance, improve throttle response, and add a touch of style to their vehicle.

Buying AFE Power Advanced Flow Engineering 46-37001 Bullet Throttle Body Spacer for 2008-2012 Honda Civic SI: Pros, Cons, and Conclusion

Introduction:

The AFE Power Advanced Flow Engineering 46-37001 Bullet Throttle Body Spacer is designed to enhance the performance of your Honda Civic SI by increasing the size of the throttle body bore, allowing more air to flow into the engine. In this article, we will discuss the benefits and drawbacks of purchasing this product.

Pros:

1. Increased Power: The primary reason for purchasing a throttle body spacer is to increase power output. By increasing the size of the throttle body bore, more air can enter the engine, resulting in more power.

2. Improved Throttle Response: With a larger throttle body bore, the engine can respond more quickly to throttle inputs, resulting in smoother and more responsive acceleration.

3. Easy Installation: The AFE Power Bullet Throttle Body Spacer is designed to be a simple and straightforward installation process. No major engine modifications are required, making it an attractive option for those looking to improve performance without extensive labor.

Cons:

1. Potential Decrease in Fuel Efficiency: An increase in power output may result in a decrease in fuel efficiency. While the exact impact on fuel economy is difficult to determine, it is worth considering if this is a concern.

2. Additional Cost: The AFE Power Bullet Throttle Body Spacer is an additional cost for those looking to modify their Honda Civic SI. While the price may not be prohibitive for some, it is an expense to consider.

3. Potential Negative Impact on Emissions: An increase in power output may also result in increased emissions. It is important to note that this product may not meet emissions standards in some areas and could potentially result in failed emissions tests.

Conclusion:

The AFE Power Advanced Flow Engineering 46-37001 Bullet Throttle Body Spacer is an attractive option for those looking to enhance the performance of their Honda Civic SI. With increased power output, improved throttle response, and a simple installation process, it offers several benefits. However, potential drawbacks include decreased fuel efficiency, additional cost, and increased emissions. Ultimately, the decision to purchase this product should be based on individual priorities and circumstances.

Recommendation:

For those looking to improve the performance of their Honda Civic SI, the AFE Power Advanced Flow Engineering 46-37001 Bullet Throttle Body Spacer is a worthwhile consideration. However, it is essential to weigh the benefits against the potential drawbacks and ensure that the purchase aligns with individual priorities and circumstances. Additionally, it is crucial to consider alternative performance modifications and their respective advantages and disadvantages before making a final decision.

part # 4637001 prices

  • $53.86-$161.27

specifications injectiopug:

  • for models: Si, Civic
  • for makes: Honda
  • for years: 2008-2012
  • brand: Afe Power
  • type: Fuel Injection Throttle Body Spacer
  • manufacturer part number: 46-37001
  • performance part: Yes
  • upc: 802959461198

offer injectiopug:

  • quantity: 5
  • availability: In Stock
  • sold: 0
  • started: September 27, 2025
  • options: Ship-to-home

returns injectiopug:

  • policy: Returns Accepted
  • time: 30 Days
  • paid by: Seller

payments injectiopug:

  • wallet: Paypal
  • credit card: Diners-club
  • other

general injectiopug:

  • condition: New
  • Air Fuel Delivery > Fuel Injection Parts > Additional Fuel Injection Parts

seller injectiopug:

  • # reviews: 109540
  • rating: 99.7%

shipping injectiopug:

  • class: Standard
  • type: Fixed
  • transit: 3-6 Days
  • cost: $0.00
  • service: Standard
for models: si, civic, for makes: honda, for years: 2008-2012, type: fuel injection throttle body spacer, performance part: yes,
category: auto parts > air fuel delivery > fuel injection parts > additional fuel injection parts, sku: 8263899220353632,

Afe Power 46-37001 Is Similar To:

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5 offers $53.86–$161.27 USD
  • Offer #1: $53.86 price + $8.75 delivery = $62.61* total. This high-quality, durable throttle body spacer is essential for enhancing air and fuel delivery in your vehicle, improving overall performance. The aFe Filters Silver Bullet Throttle Body as you'll see from the pictures, one side has a slightly mottled appearance.+$8.75 shipping
  • Offer #2: $161.27 price + free delivery = $161.27* total. It includes a gasket and hardware for easy installation, ensuring a secure fit and optimal function. Enhance your Honda midsize vehicle with the AFE Power Silver Bullet Throttle Body Spacer, designed specifically for Honda 2.4L engines from 2008 to 2015.FREE SHIPPING
  • Offer #3: $148.99 price + free delivery = $148.99* total. Advanced Flow Engineering, Inc.FREE SHIPPING
  • Offer #4: $148.84 price + free delivery = $148.84* total. Silver Bullet throttle body spacers are constructed out of durable T-6061 billet aluminum and using a unique serrated/helix entry to create turbulence at the manifold while eliminating the annoying whistle found in other helix only throttle spacers. Silver Bullet throttle body spacers create turbulence in the air flow at the point just prior entry into the engine increasing horsepower, torque and improving throttle response and fuel efficiency.FREE SHIPPING
  • Offer #5: $139.82 price + free delivery = $139.82* total. of torque This spacer works with the OE. The Silver Bullet throttle body spacer is constructed from precision machined.FREE SHIPPING