aFe Silver Bullet Throttle Body Spacer 12-15 BMW 328i (F30) L4-2.0L N20/N26

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 Helix only designs. All Silver Bullet Throttle Body Spacers are constructed from 6061-T6 billet aluminum precision machined for light weight, high strength and perfect fit and finish. Complete with an orange anodized finish, the Silver Bullet Throttle Body Spacer will stand out as a per engine bay. This Silver Bullet throttle body spacer uses all factory mounting locations providing stability and a hassle-free installation.
Silver Bullet Throttle Body Spacer Kit Subaru Crosstrek 21-25 H4-2.5L

• Silver Bullet throttle body spacers create turbulence in the air flow at the point just before entry to the engine – increasing performance, as well as improving throttle response.
• Unique Serrated/Helix Entry Design Creates Turbulence and Reduces Whistle Sound
• Increases Air Speed, Improving Performance and Throttle Response
• CNC-Machined from 6061-T6 Billet Aluminum

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.
Silver Bullet Throttle Body Spacer Kit BMW 135i (E82/88) 08-10 / 335i (E90/92/93) 07-10 / 535i (E60/61) 08-10 L6-3.0L (t) N54

• Precision Machined From T-6061 Billet Aluminum
• Produces Increased HP/Torque/Throttle Response
• Increased Air Volume For Better Performance
• 2 Year Limited Warranty
• Special Helix Design
• No Annoying Whistle
• Fits w/aFe Intakes