Want to customize your pipes for a reasonable price? Slip-on mufflers are the way to go. The Vance & Hines 3" Round Twin Slash Slip-On Mufflers can give your Harley-Davidson Sportster motorcycle a custom look and amazing growl with the added bonus of increased performance. These aftermarket muffler bodies also come with louvered-core baffles and full-covered heat shields to ensure your blue-proof look stays sharp.; Full-coverage heat shields Round mufflers with signature twin slash end treatment Louvered core baffles pre-installed with optional quiet and competition baffles available