Summit has them, in ceramic, painted, and un-coated ($640, $480, $470 respectively) with primary tube in 1-5/8" or 1-3/4"). If I KNEW they would fit with the rev lockout (without leaving parts off), then I think I'd order a pair. I have a new ceramic coated pair of headers (Hedman?) that I am not going to use because they interfered with the rev LO and LH one nudged the floor once installed.