aFe Silver Bullet Throttle Body Spacers TBS BMW 5 Series (E60) 06-10 V8-4.8L

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.This Part Fits: Year Make Model Submodel 2004-2005 BMW 545i Base 2006-2010 BMW 550i Base 2004-2005 BMW 645Ci Base 2006-2010 BMW 650i Base 2006-2008 BMW 750i Base 2006-2008 BMW 750Li Base 2001-2004 BMW X5 3.0i 2000-2006 BMW X5 4.4i 2004-2006 BMW X5 4.8is