One of the most popular dual sport bikes on the planet meets one of the most experienced exhaust tuning companies in the history of motorcycling. The KTM 500 EXC-F now has the ultimate exhaust option in the all-new RS-12 full system. It comes with a USFS approved spark arrestor and massive gains: 21.8% peak HP and 15% peak torque on the dyno. On the trail that means more raw grunt when you need to get up that rock or over that log; on the street it means more get up and go to reach the next trailhead. Machined joints give a more exact fit and better durability between muffler removal intervals, and the RS-12 leaves good tire and brake caliper clearance. Proudly designed, developed and made in the USA since 1972, infused with the legacy of Pops Yoshimura himself. OFF ROAD COMPETITION USE ONLY. MAY NOT BE LEGAL FOR ROAD USE. CONSULT LOCAL AND FEDERAL LAWS. YOUR PURCHASE IS YOUR CONSENT TO COMPLY WITH EMISSION LAWS AND STANDARDS.