The popular R-77 Full System offers outstanding performance, thanks to being developed in the heat of competition.

It features a trapezoidal design, which allows a large volume of packing material and in turn delivers top performance. The R-77 muffler's front cap is MIG-welded, while the end cap is riveted using high-end 304-L polished stainless steel rivets and bands.

• Superbike technology and styling
• Trapezoidal-shaped sleeve
• Large volume of packing material
• Straight baffle for ample flow
• Innovative end-cap
• Removable Low-Volume Insert
• Stainless steel header and tail-pipe
• Weight: 5.7 lbs lighter than stock configuration

*FOR CLOSED COURSE COMPETITION ONLY; NOT INTENDED FOR STREET USE.

**All applications are marked with appropriate EPA noise emissions labels

***Has Not been tested for EPA noise compliance

The product that you are purchasing is designed and intended for closed course competition use only and is labeled as such, i.e. Yoshimura "RACE SERIES." Yoshimura RACE SERIES products are neither designed nor intended for use on PUBLIC ROADS or LAND. Such use is prohibited by Federal and State regulations.