Anybody using these, I am looking at making a dumped set of true duals with an x, and tucking it up in the driveshaft tunnel. I know you can stick glasspacks under there but I need something that gives a little more backpressure as I have no cats. These are only an inch wider than glasspacks so they should fit fine. BTW I am currently running dynomax super turbos and love the way they sound, however they are just hanging on the end of a pair of gutted cats with some pipe hanging on the back side to equalize pressure, so I need to finish the exhaust.