YOSHIMURA RS4 Signature Serie Compleet uitlaatsysteem - carbon YAMAHA YZ 450 F The original Pro Circuit Works

The original Pro Circuit Works Pipe offers unparallel performance and power for every two-stroke application

They are coated with motor-nicksil

Using our 30 years of racing and engineering experience we have blended quality designs

Hex head screws are used to secure the inlet cap and can be removed easily for quick re-packing of the silencer

YOSHIMURA RS4 Signature Serie Compleet uitlaatsysteem - carbon YAMAHA YZ 450 F The original Pro Circuit WorksTechnological marvel Increased performance Developed in collaboration with leading MX teams Front muffler cap functions as a polyresonant chamber which helps reduce noise Pentagonal shaped sleeve