Features: Built to create smooth, tractable power to help in the toughest conditions. Smooth power curve throughout the RPM range. Larger diameter titanium canister for more tunability and longer lasting packing life. The EXTREME silencer delivers low decibel performance so you can really hear how optimal your bike is running. Optimally designed to complement performance of FMF pipes. Fits FMF or stock exhaust. NOTE: Will not pass 2025 FIM sound regulation.