RPT Mufflers - Chrome - '15-'20 FreewheelerDesigned specifically for the Harley Davidson Freewheeler. Although it is based on the Tri Glide platform, the Freewheeler is at least three inches shorter, causing regular bagger mufflers to stick out three to four inches behind the rear panels. When used with the stock head pipes, the mufflers are a simple bolt on. 3. 75 inch muffler bodies bell out at the end to four inches and are capped off with black powder coated, machined aluminum race pro