Bjorn...If you're running headers which hang low to the ground, the X or H head pipe might not be a good idea as this will hang lower also in your present "lowered" condition. I would think it would be OK for a car which hasn't been lowered more than stock. Also, make sure that the muffler installer adjusts the tailpipes away from the gas tank or the springs so you won't have any pipes banging around when you hit a bump.
