The Grand Prix Slip-On is a great way to amplify the growl of your Bagger. Inspired by the MotoGP race circuit, the Grand Prix Slip-On is guaranteed to stand out with its chrome hex end treatment nesting inside a contrasting black ceramic coated billet end cap. Don’t be fooled by its good looks, the Grand Prix Slip-On is not just for show. Inside the 4” muffler body is a free flowing, stainless core baffle wrapped in dual-density packing. Engineered to bring your bike's potent power plant to life, the Grand Prix Slip-On delivers increased performance, and a sound so deep you can feel it.