aFe Silver Bullet Throttle Body Spacer 12-15 BMW 328i (F30) L4-2.0L N20/N26 - 46-31009 fits_1998-2010`Volkswagen`Beetle Engineered for precise OEM-like fitment

Engineered for precise OEM-like fitment

The S85 V10 is one of BMW’s most celebrated engines

F31 3-Series

Fits CD Chassis only

aFe Silver Bullet Throttle Body Spacer 12-15 BMW 328i (F30) L4-2.0L N20/N26 - 46-31009 fits_1998-2010`Volkswagen`Beetle Engineered for precise OEM-like fitmentSilver 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.