aFe Silver Bullet throttle body spacers for the 135/355 create turbulence in the air flow at the point 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 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.
NOTE: Only for cars with N54 engine. Not for cars with N55 engine.
This throttle body spacer fits the following BMWs:
2008-2010 E82 BMW 135i
2010+ E82 BMW 1M Coupe
2006-2010 E90 BMW 335i 335xi 335i xDrive- Sedan
2007-2010 E92 BMW 335i 335is 335xi 335i xDrive - Coupe
2007-2010 E93 BMW 335i - Convertible
2004-2010 E60 BMW 535i 535xi 535i xDrive