hey MrGreenSE don't do that!! go to a muffler shop and get a whole system done from the cat-back in 2 1/2" piping with a nice muffler...thats wut i did but my piping is 2 1/4"... your car is gonna sound like and airplane and all those other civics and hondas out there! if you got a 'tour do it right!! don't do it cheap! i can even sell you my system that was custom bent.
