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aFe Silver Bullet Throttle Body Spacers Throttle Body Spacer - For Use With Factory Intake - 46-31006

By aFe
61 Reviews
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  • Part #: 46-31006
  • +10 horsepower
  • +14 ft-lbs. torque
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Product Info
  • Increases horsepower and torque by thoroughly mixing your air/fuel charge
  • Designed to fit your make, model and year
  • Combination serrated/helix design creates turbulence for complete fuel burn
  • Serrated entry reduces wind noise
  • Crafted from solid billet aluminum
  • Straightforward installation with included hardware
  • Available only for vehicles with dyno-proven torque and horsepower gains
  • 2-year warranty

Super-charge your combustion chamber with a throttle body spacer that keeps quiet. The aFe Silver Bullet Throttle Body Spacer increases torque and horsepower without obnoxious whistling. Its highly-effective construction creates power-producing turbulence for the ideal air-fuel mixture and optimal burn.

With aFe Throttle Body Spacers, you can have your cake and eat it too. While a combination helix design boosts performance, the Silver Bullet's serrated entry reduces wind noise.

The aFe Silver Bullet Throttle Body Spacer is crafted from solid billet aluminum and specifically made for your vehicle's make, model and year. And, it's easy to install with straightforward instructions and included hardware. 2-year warranty.

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Customer Reviews

Average Rating
Ease of Installation
61 Customer Reviews
5 Star
27 (44%)
4 Star
22 (36%)
3 Star
6 (10%)
2 Star
3 (5%)
1 Star
3 (5%)

aFe TB Spacer

Installed on a 2006 BMW X5 (e53) 4.8iS, very straightforward instructions, minimal tools need (10mm socket), half hour install time. Definitely smoothed out idol, and acceleration, mpg improvement!
Ease of Installation
Posted By Steve C (Lorton, VA) / October 2, 2013
2006 BMW X5
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