One of the best ways to ease into customizing is with the addition of a slip-on muffler set. These Twin Slash Rounds mufflers will give the unmistakable Vance & Hines look and open up the performance potential of your bike and ready for later engine upgrades, if desired. The low restriction louvered core baffles are pre-installed. Included are virtually invisible 3 inch full coverage heat shields which makes the 2-1/2" diameter muffler bodies blue-proof. Note: Will not fit 2017 model year Softail and Dyna HDI (H-D International / EU models). These come with thinner ending header pipes and US slip-on mufflers will therefore not fit. Note: Will fit 10-16 European Fatboy models after modification, drilling of a hole, of the stock muffler bracket.