Yoshimura’s AT2 Race Series full system for the 2025 CFMOTO 675SS offers up to a claimed 8.2% more horsepower and 8.6% extra torque.

Here is the complete press release from Yoshimura…
The CFMOTO 675SS has stormed onto the scene, turning heads as the middleweight sport triple everyone’s talking about. And at Yoshimura, we spotted the massive untapped potential in that snarling 675cc inline-triple right away.

We didn’t just slap together an exhaust for it—we engineered a true power upgrade. Introducing the AT2 Race Series full system; built around our legendary AT2 muffler profile for buttery-smooth power delivery, unleashes the maximum power and relentless pull from bottom to redline. The result…a powerful Yoshimura exhaust note that hits your soul, along with serious weight savings, and dyno-proven gains that transform your ride.

Significant Performance Gains
Expect massive gains over stock: up to 8.2% more horsepower at 11,100 rpm and 8.6% extra torque at 11,000 rpm—game changing gians! Yoshimura delivers the numbers you can trust and feel them with every twist of the throttle.

Significant Weight Savings
Power is useless if it slows you down. The AT2 Race Series slashes weight dramatically:
- Full system: 10.8 lbs (vs. stock ~19.6 lbs)
- 8.8 lbs. saved for razor-sharp handling, quicker direction changes, and better agility on the track through every turn.
And the sound? Pure symphony. That triple-cylinder howl mates perfectly with the AT2’s acoustics—deep, aggressive, addictive—without the headache of excessive drone or rasp. As if that wasn’t enough, the sleek matte carbon-fiber heat shield elevates the look from factory-fresh to a head turning masterpiece.
VIDEO | 2025 CFMOTO 675SS Stock vs. Yoshimura AT2 Race Series Full Exhaust Sound

Available option for the 675SS is our Passenger Peg Removal Bracket. Made of aircraft grade aluminum and then powder coated to perfection. Includes all hardware you need to install.
Proudly engineered, developed, and built in Chino, California—Yoshimura quality you can count on, mile after mile.
2025 CFMOTO 675SS Race Series AT2 pricing and Info
2025 CFMOTO 675SS AT2 Race Series FS SS/SS/CF
Part #19470AP520
MSRP: $999
Passenger Peg Removal Bracket
Part #200BG194700
MSRP: $94.95
Weights:
Stock muffler: 19.6 lbs.
AT2 Race Series: 10.8 lbs.
Sound levels:
(Using J2825 standards with INS-20-K sound insert)
2000 rpm:
Stock: 90.0dB
AT2 Race Series: 93.3 dB
5000 rpm:
Stock: 94.3dB
AT2 Race Series: 104.6 dB
