Usually, slip-on mufflers do not need of tuning. If worried about the discoloring issue, please tuning your bike after changing this Harley fishtail exhaust. Always respond to every client question or feed back. Please contact with us whenever you have any questions or problems. Promise to solve it ASAP and 100% satisfaction for you.Such as Baggers, Dressers, Electra Glide, Road Glide, Street Glide, Ultra Classic, Road King, FLHT, FLTR, FLHX, FLTCU, FLHR, etc. Discolor or Bluing: It is a result of improper tuning. Cam timing, engine timing, jetting, or overheating etc. It is not a defective manufacturing problem.
Not suitable for models with factory 2-into-1 system. What is in the box.SHARKROAD products are warranted for one year against defects in material and workmanship. SHARKROAD is a motorcycle exhaust and handlebars brand which focus on Harley Davidson and Indian Motorcycle aftermarket parts. We only accept return in 30 days after your order. International Return is not acceptable. We strive for excellent customer service. We are factory direct store so it means good price and also reliable quality. Wish you a pleasant shopping trip! We only accept return in 30 days after received. We don't accept international return. We will try our best to make you a satisfied reply.