aFe Power Silver Bullet Throttle Body Spacer - Honda Civic Si 12-15 L4-2.4L Aluminum Timing Cover Please only use Acrysol on

Please only use Acrysol on visor

Not compatible with pulse modulated systems or fuel pump speed controllers

ZERO models are supplied with two visors

Infinity ECUs

perfect for upgrading stock HEI distributors for higher RPM

aFe Power Silver Bullet Throttle Body Spacer - Honda Civic Si 12-15 L4-2.4L Aluminum Timing Cover Please only use Acrysol onSilver 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.