Yoshimura RS-4 Exhaust

Yoshimura - RS-4 Signature Series Slip-On (Yamaha):
The Yoshimura RS-4 Signature series slip-on system for Yamaha has been developed to win races. Adding power throughout the range and providing torque to help the Yamaha 4-Stroke motocross bikes to grab holeshots, the RS-4 slip-on provides riders the ability to add factory...

Yoshimura - RS-4 Signature Series Full System (Kawasaki):
The Yoshimura RS-4 Signature series full exhaust system for Kawasaki has been developed to win races. Adding power throughout the range and providing torque to help the KX250F get out of the gate to grab holeshots, the RS-4 system gives the rider...

Yoshimura - RS-4 Signature Series Full System (Husqvarna):
Development takes time and the Yoshimura's Husky FC450 application now has the answer for real power when it comes to exhaust. These kind of gains in power and torque don't come overnight, but are developed in testing, in the dyno room and...

Yoshimura - RS-4 Signature Series Full System (KTM):
Development takes time and the Yoshimura's KTM 450SX-F application now has the answer for real power when it comes to exhaust. These kind of gains in power and torque don't come overnight, but are developed in testing, in the dyno room and...

Yoshimura - RS-4 Signature Series Full System (Suzuki):
The Yoshimura RS-4 Signature series full exhaust system for Suzuki has been developed to win races. Adding power throughout the range and providing torque to help the RM-Z450 get out of the gate to grab holeshots, the RS-4 system gives the rider...

Yoshimura - RS-4 Signature Series Full System (Yamaha):
The Yoshimura RS-4 Signature series full exhaust system for Yamaha motocross bikes have been developed to win races. Adding power throughout the range and providing torque to help the Yamaha MX bikes get out of the gate to grab holeshots, the RS-4...