Empire Industries Cyclone series Exhaust system for 04- to current KFX 450. Tig welded 304 stainless steel construction. 6061 Aluminum silencer with billet end caps makes for easy repacking. Step pipe design to maximize horsepower and acceleration. We have dyno tested are pipes against the best! We are always pleased with the results. Get on the Empire Industries team and see what all the buzz is about!