Cycle News Staff | May 19, 2023
Yoshimura’s AT2 Race Series Stainless exhausts for 2022-23 R7 and 2017-23 MT-07 Yamaha models are modeled after the titanium versions.
Made from premium-alloy stainless steel, the new AT2 has Yoshimura’s proprietary Works finish that give it a unique coloring after going through a heat cycle. On a stock engine with no mods and 91-octane pump fuel, Yoshimura measured an increase of 5.7% horsepower and 2.7% torque. Legal in the MotoAmerica Twins Cup class, the AT2 is 9.6 pounds lighter than stock and it tucks under the bike’s cowling to keep it out of harm’s way.
VIDEO | Yoshimura Works Finish
Yoshimura
The has an MSRP of $819 and the first production run can be reserved; e-mail or call Yoshimura for an estimated ship date at sales@yoshimura-rd.com or 800-634-9166
Here is the complete press release from Yoshimura…
Yoshimura AT2 Race Series Stainless for Yamaha R7
When it came to crafting a special race exhaust for the Yamaha R7, we pulled out all the stops. Modeled after the titanium version, the AT2 Race Series Stainless for 2022-23 Yamaha R7 and 2017-23 Yamaha MT-07 models has Yoshimura’s Works finish. Made from premium-alloy stainless steel, it balances performance and value.
On a stock engine with no mods and 91-octane pump fuel, Yoshimura measured an increase of 5.7% horsepower and a increase of 2.7% torque. Legal in the MotoAmerica Twins Cup class, it shaves 9.6 pounds off over stock, and tucks under the bike’s cowling to keep it out of harm’s way as much as possible.
Product Details:
- For closed-course competition use only
- Full stainless-steel construction
- Saves 9.6 lbs 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
Dyno chart: stock engine with AT2 Race Series Stainless exhaust
Yamaha R7 AT2 Race Series Full System – pricing and info.
FOR 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
Weights:
Stock system: 17.1lbs
AT2 SS Full system: 7.5lbs
For more information, visit www.yoshimura-rd.com
