ForcedFirebird
NKOTB
304 stainless. Used two 15 degree 1.65" ID bends to go on 1.65"OD primaries, to 1.875" secondary. Have one more to make for a 6-3-1 setup. Used the band saw to rip the bends down to merge together, welded them, then cut the end off to weld on the straight piece.
