RCX 4.0 inch Slip-on mufflers for 2000-2016 HD Touring models, offer a great sound with unmatched styling. The large 4.0 inch muffler body contains a straight through louvered core that produces a smooth, deep exhaust tone while giving you added performance out of the box. Choose from over 20 custom exhaust tips to give your ride a unique appearance. Each muffler is available in a show quality chrome or a ceramic black finish. All RCX products come with an unmatched structural “Lifetime Warranty”. Made in the U.S.A.