Just as the topic states. I'm trying to buy a Greddy LS exhaust off a local guy who's trying to return to stock, but he wants a stock exhaust in exchange. I have a GSR so i know my b pipe won't fit his car. My question is, if I can get ahold of an LS b-pipe would I be able to mate that to the rear section of my GSR exhaust to make it fit on his LS using his stock cat? (if I remember correctly the factory exhaust systems on these cars are a total of 2 pcs. correct?)

 

The axlebacks are the same. Yes it will fit.