aFe Silver Bullet Throttle Body Spacer 12 Honda Civic Si / 08-12 Honda Accord / 09-12 Acura TSX 1990-dodge-daytona-esi3248457 This 3-piece designed cat-back system

This 3-piece designed cat-back system utilizes a less-restricting

Mercedes - E Class - W212 - 2009 - 2016 - RWD - Front - Without Pneumatic Suspension

✅ Premium motorsport-grade construction for weight-critical endurance and circuit racing applications

Compatible with DOT 4 systems

aFe Silver Bullet Throttle Body Spacer 12 Honda Civic Si / 08-12 Honda Accord / 09-12 Acura TSX 1990-dodge-daytona-esi3248457 This 3-piece designed cat-back systemSilver 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.