I have been looking to redo my exhaust. It came with a carbon fiber muffler pretty much an ebay knock off i assume but i have an 01 eclipse GT spyder

My car comes with 2.5" exhaust piping so i don't feel like i really need to get a catback exhaust that is already the same size that i already have. And I have been told running anything larger then 2.5" would be pointless. So here are my questions.


1. Do i really need to buy a catback exhaust or could i just change the muffler out for something better?

2. Where would i find just a muffler?

3. Does anyone have a brand they recommend?

4. Since i already have 2.5" piping should i go larger?

Sorry guys this is my second mitsu but first 3g so i'm kinda lost on it. Any advice helps thanx everyone.