im thinking about buying an exhaust system online but i was told to get 1 that doesn't bypass that cat the one ive been looking at says "cat back" in the description of it does anyone know what this means? cheers 4 any help mike.

 

means u will get everything from the cat back basically, back meaning from the cat going all the way to the back(to ur backbox)

 

cheers 4 your help