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 Instructions


This Part Fits:

Year	Make	Model	Submodel
2008-2010	BMW	135i	Base
2007-2010	BMW	335i	Base
2009-2010	BMW	335i xDrive	Base
2007-2008	BMW	335xi	Base
2008-2010	BMW	535i	Base
2009-2010	BMW	535i xDrive	Base
2008	BMW	535xi	Base