Yoshimura has AT2 stainless slip-ons to fit the 2023 Kawasaki ZX-4RR model.
The AT2 has Yoshimura’s proprietary Works finish that improves fatigue strength and scratch resistance of the steel. After going through heat cycles, the finish develops a unique coloring similar to the titanium works components used by Yoshimura’s factory racers. The carbon-fiber end cap has a matte-finish, and a matching carbon-fiber heat shield is included. And it can provide an increase of 3-percent horsepower and 4.3-torque according to Yoshimura. MSRP is listed at $599.
Yoshimura also has a fender-eliminator kit ($169) to complete the look and clean up the lines of the little Ninja.
2023 Kawasaki ZX-4RR Stock vs. Yoshimura AT2 Slip-on
Yoshimura
Here is the complete press release from Yoshimura…
The new Kawasaki ZX-4RR sport bike is one special machine. Engineers at Kawasaki set out to develop a 400cc inline four cylinder engine built for high performance, and they delivered.
For this special machine we used our AT2 muffler to develop a Street Series Works Finish slip-on giving power to the 16,000 + RPM’s of the new Kawasaki powerplant. The AT2 came through in performance, sound, and weight savings. HP was bumped up by an increase of 3% and torque was bumped up as well, adding 4.3%. Our mission of adding power and torque throughout the entire spectrum was accomplished.
The sound of this inline four at 16,000 rpms with our AT2 is simply something that must be experienced in real life. True music! Finally, the styling of the AT2 can’t be beat. It’s now iconic matte carbon fiber end cap and heat shield compliment the lines of the ZX-4RR to perfection.
Also available for the little Ninja is our renowned Fender Eliminator Kit. This kit will deduct some weight and clean up the lines of the rear of the new little screamer and even make it look faster too!
Our AT2 slip-on and Fender Eliminator Kit are proudly designed and manufactured in Chino, California.
For more information, visit www.yoshimura-rd.com
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