These are as close to original as you can get without stealing one from a factory museum bike

063" (a bit thicker than 16 gauge) steel

Brass diamond knurl style cap and gaskets are exact duplicate of OEM# 3629-32 cap

and this traps a lot of gas which cannot be used as it is below the petcock bung location

Hunter was able to create his people’s champ exhaust with about 5 clamps per pipe

Premium Stainless Steel Exhaust Clamps 1948-1965 Harley-Davidson Panhead MC Parts Nav These are as close toThese premium, stainless steel exhaust clamps are sized perfectly for Harley Panhead (1948 1965) exhausts both OEM and aftermarket, though they could work on other makes and models as well. High quality with modern engineering, the wide band and heavy duty tensioning screw provide maximum contact and force, keeping your exhaust where it should be on your bike. Minimum size of 1. 98" and a max size of 2. 26". We put the time in to sort out the best