At DMG Motorsports, we present the Yoshimura R-77 Street Series Slip-On Exhaust in stainless steel with a carbon fiber end cap and signature Works Finish (P/N 12553B0520) - a race-bred muffler built to deliver the sound, look, and performance that Yoshimura has been perfecting for decades. Developed straight from Yoshimura's competition program, the R-77 uses a distinctive trapezoidal muffler shape to pack in more volume than a conventional round canister, allowing for a larger charge of packing material that smooths out the exhaust note while unlocking real gains, especially in the low-to-mid RPM range where it matters most on the street. As a Street Series slip-on, it bolts directly onto the stock mid-pipe without any tampering to the motorcycle's emissions control system, so you get that unmistakable Yoshimura character while keeping your bike street legal.

Finished in Yoshimura's exclusive Works Finish - a media-blasted stainless treatment (not a coating) that develops a unique, factory-race-inspired coloration once the pipe goes through a heat cycle - this slip-on looks as good as it sounds. Premium build details carry through the entire unit: the front cap is MIG-welded for strength, while the carbon fiber end cap is secured with high-end 304-L polished stainless steel rivets and bands for a clean, finished appearance that complements any sportbike's lines. It's also noticeably lighter than the stock muffler, shaving weight right where it counts for sharper handling.

Features:

• Trapezoid-shape stainless steel muffler with carbon fiber end cap for maximized internal packing volume
• Signature Yoshimura Works Finish - a media-blast treatment that develops unique heat coloration after riding, not a paint or coating
• Straight, single-core baffle design
• Low-volume sound insert capable
• MIG-welded front cap for durability
• End cap riveted with high-end 304-L polished stainless steel rivets and bands
• Street Series slip-on/bolt-on design - no emissions system tampering required
• Lighter than the OEM muffler for reduced weight and improved feel
• Race-developed design delivering top performance with minimal added sound

Fitment