V-5 Slip-On for '21-'22 PanAmerica Designed for the true adventure rider. 5” Disc Based Stainless Tunable Muffler, also USFS approved spark arrestor. Muffler comes with 22 discs (pre-installed) for a deep, low tone rumble that won’t scare the critters. Muffler features two Center Pull Retainer...
supertrapp.com
As far as I know, only aftermarket pipe national forest approved.