I originally bought this to fit onto my 03 accord but I changed my mind. This is a 06-08 tsx exhaust which has a little bigger pipping than the 04-05. The size of the pipe is 2.25 like most other aftermarket exhausts on the market. As I have said before this fits all first gen TSX's and will fit 4cly 03-07 accord coupes after welding 2 hangers to the car (I heard its the same for sedans except you have to add an inch or 2 but I'm unsure exactly what it is for sedan). Asking $120 OBO. Located in Whittier/La Habra, Ca. Locals only. Text me at 562-665-7774.