At DMG Motorsports, we present the Yoshimura Street AT2 Slip-On Exhaust (SS/SS/CF) — part number 16890BP521 — a race-inspired slip-on built for the KTM 790 Duke and 890 Duke R that delivers the unmistakable Yoshimura look, sound, and performance edge. This AT2 (Alpha Taper 2) muffler carries on Yoshimura's iconic muffler profile with original design cues, reimagined with a modern faceted silhouette that stands out from anything else on the road. Constructed with a stainless steel body and finished with a matte carbon fiber end cap and application-specific heat/heal guard, this slip-on trims noticeable weight from the stock system while adding an aggressive, track-bred aesthetic to your Duke.

As a Street Series slip-on, it bolts directly onto the factory header without disturbing the bike's emissions equipment, making installation straightforward while still delivering that unmistakable Yoshimura spirit. Finished in the brand's signature Works coloring, the muffler develops a unique heat-tempered patina after its first ride, giving it the same worn-in, titanium-like look seen on Yoshimura's factory race components.

Features:

• Yoshimura AT2 (Alpha Taper 2) muffler with an iconic profile and all-new faceted styling
• Matte carbon fiber end cap paired with an all-new faceted inner end cap assembly
• Custom matte carbon fiber heat/heal guard engineered specifically for the KTM 790 Duke / 890 Duke R application
• Exclusive Yoshimura Works Finish that develops a unique heat-cycled coloring reminiscent of factory titanium race components
• Stainless steel slip-on construction (SS/SS/CF) for durability with reduced weight versus the stock muffler (stock: 7.4 lbs vs. AT2: 4.8 lbs)
• Street Series slip-on/bolt-on design that does not require modification of the vehicle's emissions control system
• Fits KTM 790 Duke (2019-2020) and KTM 890 Duke R (2020-2021)
• Proudly designed and made in the USA

Fitment