Yoshimura RS-4 Slip on Exhaust System for KTM 1090, 1190, 1290
In the world of Adventure bikes, KTM big bore bikes are held in very high regard. KTM 1290, 1190 and now with addition of the new 1090, the orange brand is aiming high at filling every desire of the adventure rider.
For those that want to compliment these three KTM machines, Yoshimura has developed an RS-4 slip-on exhaust system that delivers in every area that an adventure rider would desires – power, sound and looks. The power that the RS-4 provides is second to none, delivering a 3.1% max gain in horsepower and a 2.7% max gain in torque. The sound the RS-4 slip-on exhaust system provides a throatier tone and with over a 5 lbs. weight loss, acceleration and throttle response has been improved dramatically. Finished off with Yoshimura’s own Works Finish and you have a winner!
Included with each RS-4 is a sound insert. Optional spark arrestor is available separately.
Proudly made in the USA!
New Yoshimura Works Finish takes on a unique coloring after it goes through a heat cycle on the motorcycle that looks much like those titanium works components our factory racers use.
- Contemporary Satin/matte finish
- Uniform heat coloration
- Increased fatigue strength
- Increased scratch and stain resistance
- 3.1% HP gain
- 2.7% Torque gain
- Easy slip-on installation
- EFI automatically adjust for increased flow
- 5 lbs. weight loss