Yoshimura's R-77 three quarter exhaust 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.

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

Features:

• 3/4 system configuration
• 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 mid-pipe and tail-pipe
• Weight: 16.2 lbs lighter than stock configuration