Yoshimura AT2 Full System Exhaust - 13992AP521

Stainless Steel Muffler - Carbon Fiber End Cap

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

Yoshimura's R&D team immediately went to work on the development for the new Yamaha and called on the 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 their 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.

Features:

• Stainless steel construction with carbon fiber end cap and heel guard
• Yoshimura's exclusive Works Finish
• Noticeable gains in max horsepower and max torque
• Sheds weight compared to stock exhaust

Note: For closed course competition ONLY; Not intended for street use.

Installation Instructions (3.21 MB)