At DMG Motorsports, we present the Yoshimura RS-12 Street Slip-On Exhaust (WF SS-SS-CF, Part# 116612S520) — a factory-inspired muffler built for Suzuki DR-Z4S/SM owners who want a lighter, better-sounding system without sacrificing 50-state street legality. Finished in Yoshimura's exclusive Works Finish and topped with an all-new faceted matte carbon fiber end cap, this slip-on brings genuine race-team styling and engineering straight from Yoshimura's Chino, California facility to your bike.

Yoshimura spent years refining the RS-12 platform alongside factory-sponsored racers and engineers, and it shows in every detail — from the precision-machined joints that seal tighter than typical sandwich-style mounts, to the asymmetrical muffler shape that maximizes internal volume for better sound management and a stronger pull. The RS-12 slip-on trims real weight off the stock unit, dropping the DR-Z4S/SM's stock 13.6 lb slip-on down to just 9.2 lbs, helping centralize mass and sharpen handling while adding a more aggressive, tuned exhaust note.

Features:

• Matte carbon fiber end cap with an all-new faceted design and decal inlays
• Exclusive Yoshimura Works Finish for a premium, factory-race appearance
• Stainless steel muffler body and stainless header construction (SS-SS-CF)
• Precision machined joints for a superior 360-degree sealing surface
• Patent-pending Precision Taper Fit (PTF) insert ring for easy sound insert/spark arrestor removal
• Asymmetrical muffler profile maximizes volume to manage sound and add usable power
• Significant weight savings versus the stock slip-on (13.6 lbs stock vs. 9.2 lbs RS-12)
• Slip-on/bolt-on Street Series design that does not require tampering with emissions controls
• Designed, developed, and made in the USA at Yoshimura's Chino, California facility
• Fits Suzuki DR-Z4S/SM applications (Part# 116612S520)

Fitment