Knucklehead Shotgun Exhaust Systems For 1936 - 1947 S Pipe Sets PART #:523-3 720TM 38"-long Tapered muffler set

720TM 38"-long Tapered muffler set

800I Adapter to put 1/4" NPT petcock on late-style

765A Ribbed Panhead rocker arm covers for 1948–1965  engines (sold in pairs)

611R* 30"-long right-side for 1980–1984 Touring models

and a rear pipe that routes over the transmission

Knucklehead Shotgun Exhaust Systems For 1936 - 1947 S Pipe Sets PART #:523-3 720TM 38"-long Tapered muffler set1 3 4" Shotgun Exhaust Systems For 1936 1947 Knuckleheads Choose from four 3 piece drag pipe and muffled exhaust systems for rigid frames. Heat shields are recommended for the rear pipes. 3 PIECE S PIPE SETS WITH SHOTGUN REAR PIPE All of these complete exhaust systems have slider channels, and a Paughco #523 3 hanger clamp is included with each set (except the drag pipes). 711D40 40" long Slash Cut drag pipes 711DM 38" long Slash Cut muffler set