aFe Silver Bullet Throttle Body Spacers Mazda 3 14-18 L4-2.0L/2.5L 2.5 gt spec.b sedan then fiddle with Schrader valves

then fiddle with Schrader valves until the pressures are equalized

and Silver Anodized finishes with matching centercaps in Red and Blue

75 degrees

Subaru 08-14 WRX

aFe Silver Bullet Throttle Body Spacers Mazda 3 14-18 L4-2.0L/2.5L 2.5 gt spec.b sedan then fiddle with Schrader valvesSilver 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 el iminating the annoying whistle found in other helix only throttle spacers. This