Re: shaved cobra rear bumper...
Buy your bumber, ship it here, and throw some money at Gabe (modular2valve) do it...he did his saleen bumper and did a cool thing with his side skirts making them all 1 piece...looks stock.
BUt yeah, you won't really find one pre-shaved unless someone had it done.
"When I know more, I'll be forthcoming. Or I won't be forthcoming, and I'll be honestly deceptive." - Les Miles