Originally Posted by Noize

The problem with installation is that the stupid stock cat pipe has a heat shield that goes over the flange. The factory midpipe flange goes into the heat shield and meets up with the cat pipe's flange. Since the Ultimate exhaust is a 3" unit, obviously the flange on it needs to be bigger. Well, welcome to a massive pain in the butt.

To make matters challenging, you have to remove the factory cat pipe (2 more bolts and the O2 housing) and then unbolt and fight off the factory heat shield, which has four fold bends. If you had redonkulous mad skillz, you might be able to do this on the car. I could not.

Another dumb thing Mitsu did was have the nut part of the bolt built into the cat pipe. Well guess what? They are made really strange and I fought with the Ultimate midpipe and factory cat pipe for about 45 minutes trying to get them to merge. _No_frakking_way_ that was going to happen, it just wouldn't aligh. So I went to Home Depot, since the supplied bolts and nuts weren't long enough to go all the way through the extended portion of the factory cat pipe with the factory nuts.

Originally Posted by CleverUserName

are you going to keep it single exit like that?

Originally Posted by Noize

Yup. Like the lightweight, no muffler on drivers side, and the rear diffuser helps it blend.