Vance & Hines V47943 Hi-Output Slip-On Muffler Black for Street 500/750 14-UpDescription for Vance & Hines 4 1 2 Hi Output Slip On Muffler Black Your Harley Davidson Street motorcycle deserves the sound you only get from Vance & Hines. This 4 1 2" Hi Output Slip On Muffler will make your bike roar through the urban jungle. They're also boldly stepped from 4" to 4 1 2" and finished with fluted machined billet end caps with a laser engraved badge for a sleek finish. Bold muffler design makes your Harley look and sound the way it