Akerly & Childs 4.060" Xtreme Piston Ring Compressor BR10023 Silver Bullet throttle body spacers

Silver Bullet throttle body spacers create turbulence in the air flow just prior to entry into the engine increasing horsepower

Premium 2"Â Polyester Webbing

Carbon Fiber

3/4 in NPT Female Inlet / Outlet

Akerly & Childs 4.060" Xtreme Piston Ring Compressor BR10023 Silver Bullet throttle body spacersPiston installation is as important a procedure as any other during engine assembly. That is why Akerly & Childs Xtreme ring compressors are manufactured with the engine builder in mind. All compressors are machined with a step at the bottom to clear block o rings when used. Xtreme compressors are manufactured from aircraft quality 6061T6 heat treated aluminum and then hard anodized for long life. Akerly & Childs over 50 years experience in racing