aFe Silver Bullet Throttle Body Spacers TBS BMW (E53) 00-06 5series (E39) 97-09 6series (E63/64) - afe46-31001

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. PartNumber : afe46-31001 Description : Silver Bullet Throttle Body Spacer 2009 BMW 528i Base L6.2996cc Air Intake Systems::Throttle Body Spacers 2009 BMW 528i xDrive Base L6.2996cc Air Intake Systems::Throttle Body Spacers 2009 BMW 535i Base L6.2979cc Air Intake Systems::Throttle Body Spacers 2009 BMW 535i xDrive Base L6.2979cc Air Intake Systems::Throttle Body Spacers 1997-2003 BMW 540i Base V8.4398cc Air Intake Systems::Throttle Body Spacers 2004-2005 BMW 545i Base V8.4398cc Air Intake Systems::Throttle Body Spacers 2006-2009 BMW 550i Base V8.4837cc Air Intake Systems::Throttle Body Spacers 2004-2005 BMW 645Ci Base V8.4398cc Air Intake Systems::Throttle Body Spacers 2006-2009 BMW 650i Base V8.4837cc Air Intake Systems::Throttle Body Spacers 2000-2006 BMW X5 4.4i V8.4398cc Air Intake Systems::Throttle Body Spacers 2004-2006 BMW X5 4.8is V8.4837cc Air Intake Systems::Throttle Body Spacers