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aFe POWER 46-31001 Silver Bullet Throttle Body Spacer

BMW X5 (E53) 00-06 V8-4.4L/4.6L
Part Number: 46-31001

MSRP: $234.00

In Stock. Will ship within 1-2 business days.


Using a serrated/helix design, this spacer creates turbulence in the air flow at the point just prior entry into the engine optimizing the combustion cycle. This turbulence helps the air/fuel charge burn completely providing increased horsepower, torque and improved throttle response. This spacer works with the OE and aFe Power cold air intake systems.

Serrated/Helix Design: The Serrated/Helix combination design creates intake turbulence in the combustion chamber. This turbulence breaks up the fuel which creates a more complete combustion cycle increasing horsepower, torque and improving throttle response. The Serrated/Helix combination design also reduces intake whistle that occurs with other Helix only designs.

6061-T6 Billet Aluminum Construction: All Silver Bullet Throttle Body Spacers are precision machined from 6061-T6 billet aluminum for light weight, high strength and perfect fit and finish.

Longer Intake Track: Adding a Silver Bullet Throttle Body spacer lengthens the intake track which helps increase intake air speed increasing performance and improved throttle response.

This Spacer Fits:
2000-2006 BMW X5 4.4i (E53) V8-4.4L
2002-2003 BMW X5 4.6is (E53) V8-4.6L
1997-2003 BMW 540i (E39) V8-4.4L
2004-2005 BMW 545i (E60) V8-4.4L
2004-2005 BMW 645i (E63/E64) V8-4.4L

This throttle body spacer is 50-state legal (CARB E.O Number D-550-11/D-550-17).

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