Knucklehead Upsweep 3 Piece Exhaust Systems For 1936 - 1947 PART #:415BR 800D Reducer bushing – 3/8"

800D Reducer bushing – 3/8" NPT to 1/4" NPT

711B Headpipes ONLY for use with extensions or mufflers (use Paughco #725D clamps to install)

"-diameter right-side High-Sweep muffler

716B1 Headpipes ONLY for use with extensions or mufflers

or shimmed

Knucklehead Upsweep 3 Piece Exhaust Systems For 1936 - 1947 PART #:415BR 800D Reducer bushing – 3/8"1 3 4" Upsweep 3 Piece Exhaust Systems For 1936 1947 Knuckleheads An inside the frame front squish pipe, and an upsweep rear pipe blend traditional and Chopper looks on your 1936 1947 Knucklehead. 3 PIECE UPSWEEPS WITH OVER THE TRANSMISSION REAR PIPE The rear pipes turn up to follow the bottom frame rail on 19361947 rigid frames, and will work with electric start wraparound oil tanks. All of these exhaust systems (except the the Paughco #714B1