H down low, x is more up top
X is louder at WOT is what your saying? I'm doing this tomorrow lol...just want to be sure
Did you get MILs for the O2 plugs? You would throw a code if not...when i put my cat deletes on, i asked shaun from AED if i needed a new tune and he told me no.
you want the x it flows better!!!! When i installed my x it took away sound out the back end and brought more sound toward the center of the car. its a fuller sound. sounds more like a race car going by but not as loud. .
I heard both side by side, the h pipe setup is much louder then the x pipe, its also much deeper. The x pipe car had a nice sound but was too quiet for my taste.