aFe Power Silver Bullet 46-31009 BMW 328i (F30) Throttle Body Spacer

Brand	aFe Power
Model	46-31009

In-house dyno testing resulted in max gains up to 6 HP and 10 lbs. x ft. of torque

Precision machined from 6061-T6 billet aluminum

Serrated/Helix Combination Design for optimum airflow into the combustion chamber

Includes gasket and hardware

This product is 50-state legal (CARB E.O Number D-550-11)

This Silver Bullet throttle body spacer produces up to 6 hp and 10 lbs. x ft. torque and is constructed from precision machined T-6061 billet aluminum. Using a serrated/helix design, this spacer creates turbulence in the air flow at the point just prior entry into the engine optimizing the combustion cycle. This turbulence helps the air/fuel charge burn completely providing increased horsepower, torque and improved throttle response. This spacer works with the OE and aFe Power cold air intake systems. Serrated/Helix Design: The Serrated/Helix combination design creates intake turbulence in the combustion chamber. This turbulence breaks up the fuel which creates a more complete combustion cycle increasing horsepower, torque and improving throttle response. The Serrated/Helix combination design also reduces intake whistle that occurs with other Helix only designs. T-6061 Billet Aluminum Construction: All Silver Bullet Throttle Body Spacers are precision machined from T-6061 billet aluminum for light weight, high strength and perfect fit and finish. Longer Intake Track: Adding a Silver Bullet Throttle Body spacer lengthens the intake track which helps increase intake air speed increasing performance and improved throttle response. Also Fits: BMW 220i/228i (F22) 14-15 L4-2.0L (turbo) N20, BMW 320i/ix (F30/31/34) 13-15 L4-2.0L (turbo) N20, BMW 328ix (F30) 12-15 L4-2.0L (turbo) N20/N26, BMW 328i/ix (F31/34) 13-15 L4-2.0L (turbo) N20/N26, BMW 420i/ix (F32/33) 14-15 L4-2.0L (turbo) N20/N26, BMW 428i/ix (F32/33/36) 14-15 L4-2.0L (turbo) N20/N26