I am thinkin about gettin a new s-pipe and an axle back muffler. Firstly, is the stock diameter on the tC piping 2.25? because I was looking at s-pipes and some were 2.25 and some were 2.5 and I want it to fit the stock system without any difficulties/modifications. I dont want to replace the whole midsection because I dont have the money for that now and I dont want to get a 'cheap' catback system like megan or tsudo becuase I hate how the exhausts come out at an angle and think they look horrid, and I am not planning on getting new headers. At the moment everything is stock. Basically I want to spend about $300-$400 on this (pipe and muffler + install) just need to make sure fitments are correct before I order anything. I tried usin the search tool but I couldn't really find what I was looking for, so sorry if this has been asked before.