Yoshimura R&D of America, Inc.

MT-09 21-26 / XSR 900 22-25 Race AT2 Stainless Full Exhaust, w/ Stainless Muffler

MT-09 21-26 / XSR 900 22-25 Race AT2 Stainless Full Exhaust, w/ Stainless - Main image
$851.29 $1199 In stock

Category: Race Series Exhaust System

The 2021 Yamaha MT-09 has been revised with many features including a refined chassis and engine package.

Our R&D team immediately went to work on the development for the new Yamaha and called on our AT2 profile to handle the power and torque of the 890cc three cylinder - torque monster engine. The AT2 is perfect styling for the MT-09 and incorporates our exclusive Works Finish an aggressively styled matte finish carbon fiber end cap complimented by a facet-formed tip while adding an aggressive GP tone.

Right away the bike lost 6 pounds by removing the stock system and installing the AT2 Race Series full system. With plenty of torque on the bottom end we focused on bringing the power more to the top of the spectrum. After development and testing was all said and done the AT2 gave the MT-09 a nice 2.7% increase in max HP and a 1.6% in max torque.

  • Stock System: 15.6 Lbs. VS Yoshimura AT2 full system: 9.6 Lbs.

Our AT2 Full System is proudly developed, designed and made in the USA.

Sound Insert/Spark Arrester Options

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Sound Level

Volume Insert Spark Arrestor Included
INS-20-K No

INS-27-K

No 
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Customer Reviews (4.6 / 5 · 5 reviews)

Stella ★★★★★

The tone is deep and aggressive without being obnoxiously loud—just what I wanted for the MT-09. The stainless finish looks clean against the bike’s lines, and it saved noticeable weight over stock.

Robert ★★★★★

Installed it this weekend and the mid-range punch is incredible, completely woke the bike up. The stainless muffler has a deep tone without being obnoxious on longer rides.

Violet R. ★★★★★

The welds on the stainless piping look flawless, and the fit onto the MT-09's revised engine was spot-on without any wrestling. Honestly, the weight savings over the stock system are very noticeable the first time you tip it into a corner.