im planing on buying a catback exhaust for my 99 civic coupe with an ls swap what size pipes i gotta go with? and does it matter if you get your catback done at a regular muffler shop the shop i went to is called muffler for less they where charging 120. or its better to go name brand dont wanna spend nomore than 200.

 

price seems good, I went with a 2 1/2 to the turbo mufler. No ristrictions. 90 accord