The R-304 Shorty silencer was developed as a full-race two-stroke silencer and was designed to increase power over stock exhaust. The compact design of the short aluminum canister offers optimum performance gains and is recommended for closed-course racing only. Hex head screws are used to secure the inlet cap and can be removed easily for quick re-packing of the silencer. 304 stainless steel intake tube. Double-walled mounting brackets. 6061 T-6 brushed aluminum housing. E-Glass internal packing for maximum packing life. Lightweight with high-strength steel rivets and steel Allen head screws securing the inlet cap for easy repacking.
"this pipe is great, if you only or still have stock exhaust on your bike, if you buy this pipe you will notice a big difference in power. it has a nice sound to it, looks great on the bike and it was easy to install , i have this paired up with the pro circuit platinum pipe on my yz 85 ,,huge power gains. this just makes the bike rip even harder. great pipe, and in my opinion its better than fmf"