BBR Tuning 2-Stroke Long Shot Extended Exhaust Muffler Pipe The BBR Tuning 2-Stroke Long Barrel Extended Performance Exhaust Muffler Pipe will have your 2-Stroke 48cc, 66cc, or 80cc bicycle engine kit riding loud and riding fast Installation is easy: just wrap and affix the muffler wrap around the pipe of your muffler, and then bolt up the pipe to your engine- it's that simple Give your Flying Horse, Grubee, Mega Motors, Power King, Stinger, or other 2-stroke engine kit that extended muffler you've been looking for Barrel Length: 5.5" ; Pipe Length: 16" with a 6" bend; Includes insulated muffler wrap