Yoshimura Releases Yamaha R7 AT2 Stainless Race Series Exhaust

230506 Yoshimura AT2 Race Series Stainless for Yamaha R7 [678]


CHINO, CA – May 6, 2023 – (Motor Sports NewsWire) – When it came to crafting a special race exhaust for the Yamaha R7, we pulled out all the stops. Modeled after the titanium version, this Works Finish stainless system is the perfect balance between performance and value. Created with premium alloy material, then prototype after prototype until we reached the final test system. On a stock engine with no mods and 91 octane pump fuel, this new system creates +5.7% max HP and +2.7% max torque. This system is designed to create even more performance with motor work and our airbox so the gains we publish are just the start of a powerful package.

Losing 9.6lbs. from the stock system, our AT2 is ready to make your R7 move! The design of the AT2 tucks nicely under the lower cowling to keep it away from harm’s way as much as possible.

Product Details:

  • For closed course competition use only
  • Full stainless steel construction
  • Saves 9.6lbs from the stock OEM exhaust system
  • Includes M18 lambda sensor bung at the tailpipe
  • Works with stock bike, but designed for highly modified race-tuned engines
  • Developed by Yoshimura while building #ProjectR7 piloted by Ari Henning and tested by 2022 MotoAmerica Twins Cup Champion Blake Davis
  • Optional sound insert kit available for -4dB if required (INS-20-K)

Legal for use in MotoAmerica Twins Cup Class

230506 Yoshimura AT2 Race Series Stainless for Yamaha R7 [2]

230506 Yoshimura AT2 Race Series Stainless for Yamaha R7 [3]

AT2 Muffler End View - No Heat Shield

230506 Dyno chart- stock engine with AT2 Race Series Stainless exhaust

Dyno chart: stock engine with AT2 Race Series Stainless exhaust

Yamaha R7 AT2 Race Series Full System – pricing and info.Yoshimura WarningFOR CLOSED COURSE COMPETITION ONLY; NOT INTENDED FOR STREET USE

22-23 Yamaha R7 17-23 MT-07 AT2 Race Series FS SS/SS/CF WF

Part # 13720AP520
MSRP: $819.00

Hi-res images available here: https://www.dropbox.com/scl/fo/fuimp1aw8aknbxsxc8caj/h?dl=0&rlkey=ai8a0inwnqz7r7qvcjgpy8sca

Stock system: 17.1lbs
AT2 SS Full system: 7.5lbs

About Yoshimura

Yoshimura is renowned for its Research and Development. But producing the finest exhaust systems in the world requires more than a big R&D department. Yoshimura is the leading manufacturer of exhaust systems because our commitment to R&D is matched by our dedication to uncompromising quality standards and our expertise in manufacturing pipes that meet those standards.

Source: Yoshimura Research and Development of America