Knucklehead Shotgun Exhaust Systems For 1936 - 1947 S Pipe Sets PART #:523-3 765A Ribbed Panhead rocker arm

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

Evolution Big Twin and Sportster engines and Twin Cams

1-3/4" ‘Side by Side’ Upswept Fishtail Exhaust Systems For 2000-2017 Twin Cam Softails

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

4-gallon single cap tank

Knucklehead Shotgun Exhaust Systems For 1936 - 1947 S Pipe Sets PART #:523-3 765A Ribbed Panhead rocker arm1 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