Check the listing for details. HMF Performance Black Full System Exhaust Blackout Euro Cap Kawasaki KFX 450R. Condition: New. Listed at 699.95 USD. HMF - PERFORMANCE SERIES FULL SYSTEM Fits: Kawasaki KFX 450R (2008-2014) The Kawasaki KFX 450R HMF system is available as a Slip-On or Full System in the Performance and Competition exhausts. Depending on the exhaust series, the slip-on system picks up 4.8-5 HP to the rear wheels, while the Full System adds another 1-2 horse power. The Performance exhaust will be roughly 4-6dB louder than the stock muffler, however the Competition Inserts or HMF Quiet Core can decrease that 2-4dB. Additionally, the aluminum shells weighs substantially less that the stock exhaust. Fuel Tuning is absolutely required when installing an HMF Exhaust on this machine. Failure to tune the engine can cause excessive damage to the exhaust system and engine, while voiding the warranty on your exhaust and possibly on your machine. (check with local dealer). See the tuning settings below for the proper fuel tuning solution on your machine. About UsATV Galaxy is an authorized HMF dealer located in Irvine California. Please feel free to contact us anytime with questions or tech help. We are open Monday-Thursday 8-5 PM, Fridays 8-3:30 PM. Listing and template services provided by inkFrog NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLE. THE MANUFACTURE, SALE, OFFER FOR SALE, OR INSTALLATION OF THIS PRODUCT MAY ALSO BE ILLEGAL NATIONWIDE UNDER THE FEDERAL CLEAN AIR ACT (42 U.S.C. §7522(A)(3)