More power does not require more noise, and the Vance & Hines Monster 5-1/2" Oval Slip-Ons prove it. These mufflers give Monster Ovals twice the internal volume of most aftermarket slip-ons for better flow and more torque at stereo-friendly volumes. They also come with full-coverage heat shields to ensure you can be proud to show off your blue-proof pipes.; ; Black with chrome end caps Monster Ovals crush the old saying that more power requires more noise The ovalized mufflers give Monster Ovals twice the internal volume of other slip-on mufflers for better flow and more power Encased in full-coverage one-piece formed heat shields with machined end caps in chrome or black, riders will be proud to show off their pipes wherever the road takes them Full coverage heat shields 5-1/2" Oval