How is the clearance on the crossover pipe? I have just the headers now with dual exhaust. But I need to get the crossover and single exhaust to make the truck emissions legal. So I'm going to get the crossover for these headers They also make a crossover for 4-6" of lift. Wonder what the benefit is? Anyways, I would be interested in pics of the crossover/y-pipe. And any words of wisdom.