The Pro Circuit 304 is a slip-on silencer designed to boost top-end performance while helping reduce noise thanks to its slightly longer body. Built for durability with premium materials and easy repacking for long service life.
The Pro Circuit 304 Slip-On Silencer is built for riders who want a strong, reliable exhaust upgrade with a focus on usable performance and controlled sound. Its slightly longer canister helps deliver added top-end performance while reducing noise output—ideal for riders looking for a fast, clean-running setup without unnecessary volume.
With a rugged 6061-T6 brushed aluminum body, stainless steel inlet tube and end-cap, and strong TIG/MIG welds, the 304 is made to handle demanding motocross and off-road conditions. Practical details like double-walled mounting brackets and Allen head screws make maintenance simple, so repacking is quick when it’s time—helping extend the product’s life and keep performance consistent.
