I am installing an itr in my eg.I have a tanabe medallion catback but i got it off a coupe, ill have to get the piping rerun i think. What size piping? And what to do for a cat convertor? And the bigger part of the piping thats on it now close to front will i need to get it reinstalled.just curious thanks in advance

 

pick up some good catback piping..

http://www.accordinglydone.com/store

and keep that muffler

 

i did that .b4 ..well somethin close ...i took an apexi N-1 off a dc2 and put it on my eg ...some shortening here and there it was a cool fit ...the local muffler shop charged me 40 bucks

i would imagine since its a coupe it will be much easier

 

what about a convertor? ive heard carsound

 

yes carsound are the best:

http://www.Car-sound.com

they are epa approved, warrentied, and Carb ok: