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. 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.Installation InstructionsThis Part Fits:
Year
Make
Model
Submodel
2009
BMW
528i
Base
2009
BMW
528i xDrive
Base
2009
BMW
535i
Base
2009
BMW
535i xDrive
Base
1997-2003
BMW
540i
Base
2004-2005
BMW
545i
Base
2006-2009
BMW
550i
Base
2004-2005
BMW
645Ci
Base
2006-2009
BMW
650i
Base
2002-2005
BMW
745i
Base
2002-2005
BMW
745Li
Base
2000-2006
BMW
X5
4.4i
2002-2003
BMW
X5
4.6is
2004-2006
BMW
X5
4.8is
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