I got a modified exhaust citation, so I need to quiet my car down before Jan. 15th. I decided to buy some cats for the o/r prochamber instead of buying an entirely new mid-pipe. The guy at the shop told me mini cats would be the best option. I found Pypes makes minis. This is a stupid question, I'm sure, but will they bolt up to an h-pipe? They were made for the x, but pipe is pipe, right? :??: