The best price, best looking, best performing dual slip-on exhaust for the latest premium models in Kawasaki's touring line-up, Vance Hines Twin Slash Round Slip-ons offer a large 4" diameter muffler body with all-new baffle delivering strong performance with a throaty rumble and the distinctive Vance Hines twin slash end treatment, all at an incredible price of under $450. That's a value that cannot be ignored. Note: The Twin Slash Rounds left slip-on has an extended header to route the hot exhaust gases under the motorcycle.Important Notes:**Some products may not be legal for sale or use on pollution-controlled vehicles. Check your local laws and the manufacturer's information.**It is recommended that new exhaust gaskets and a proper jet kit be installed when changing an exhaust system on a carburated motorcycle, or new exhaust gaskets and a digital fuel processor when changing an exhaust system on a fuel-injected motorcycle.**There is no warranty on exhaust pipes and mufflers with regard to any discoloration. Discoloration (blueing) is caused by tuning characteristics, like cam timing, carb jetting, etc., and is not caused by defective manufacturing.