Vance & Hines Supersport 400 Slip-On Mufflers For Harley Touring Give your bike an aggressive look and deep rumble with a set of race-inspired Supersport 400 Slip-Ons from Vance and Hines. With their stainless rolled tips and machined end caps, these slip-ons give your bike a strong, no BS look! Features: Deep, aggressive tone Mid-length 4 round muffler body Fits saddlebags with extended skirts Classic riveted nameplate Sold as a set Note: Head pipes are not included.