5/8 zinc tube and chrome-plated steel base ...

3/4 zinc tube and chrome-plated steel base ...

1 inch zinc tubeBlack rubber top and rubber baseMounts ...

3/4 inch flangeBlack rubber top and baseClamps directly ...

1-1/4 inch flangeBlack powder-coated metal top and rubber ...

Zinc tube adapts to 1-1/4 inch valve cover ...

3/8 to 1/2 inch flange inside diameterChrome-plated steel ...

Flange adapts to 3/8 to 1/2 inch tubingChrome-plated steel ...

Flange adapts to 3/8 to 1/2 inch tubingChrome-plated steel ...

Flange adapts to 3/8 to 1/2 inch tubingChrome-plated steel ...

Flange adapts to 9/16 inch tubingChrome-plated steel top ...

Guaranteed horsepower gainDesigned to improve throttle ...

Guaranteed horsepower gainDesigned to improve throttle ...

Guaranteed horsepower gainDesigned to improve throttle ...

Guaranteed horsepower gainDesigned to improve throttle ...

Designed to boost accelerationDesigned to improve throttle ...