Silver Bullet throttle body spacers create turbulence in the air flow just prior to entry into the engine increasing horsepower, torque and improving throttle response and fuel efficiency. Silver Bullet throttle body spacers are constructed out of durable 6061-T6 billet aluminum and use a unique serrated/helix entry to create turbulence at the manifold while eliminating the annoying whistle found in other helix-only throttle spacers.
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 helix-only designs.
6061-T6 Billet Aluminum Construction: All Silver Bullet Throttle Body Spacers are constructed from 6061-T6 billet aluminum precision machined 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, performance and improve throttle response.
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).
Year Make Model SubModel Engine Fuel 2004-2005 BMW 545i E60 V8 4.4L Gas 2009-2009 BMW 550i E60 V8 4.8L Gas 2004-2005 BMW 645ci E65/66 V8 4.4L Gas 2004-2005 BMW 645i E63/64 V8 4.4L Gas 2009-2009 BMW 650i E60 V8 4.8L Gas 2002-2005 BMW 745i E65/66 V8 4.4L Gas 2002-2005 BMW 745Li E65/66 V8 4.4L Gas 2000-2006 BMW X5 E53 V8 4.4L Gas 2002-2003 BMW X5 E53 V8 4.6L Gas
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