FMF Racing Honda CRF450X 19 Hex Q4 S/A Muffler

This is the FMF Racing Q4 S/A Muffler, specifically made for your 2019-2022 Honda CRF450X. If you're hitting the trails or the track, this muffler is built to handle the demands of off-road riding while keeping the noise down. It's developed from years of racing experience, so you know it's made to perform when you need it most.

Constructed from aircraft-grade aluminum and high-strength stainless steel, this muffler is built tough for off-road endurance. It's designed to give you power gains throughout the entire RPM range, whether you pair it with your stock header or an FMF header. Plus, it meets USFS and FIM World Enduro regulations, and includes a spark arrestor, making it legal for many riding areas. The sound output is kept to a maximum of 96dB, with most models running below 94dB, which means less noise and more access to riding grounds.