This may be a "slap in the face" question but i wanna be sure:
so ive been looking into getting better exhaust pipes for my 99 LS. it just so happens that a buddy of mine wrecked his 98 GSR (rip GSR) which has a 2.5" ebay cat-back exhaust system on it..i will only be using the pipes since ive already got a twin loop on my car..im just wondering if there are any differences in the bends and clearances on a GSR exhaust pipes to an LS exhaust pipes? can i just swap it with no probs? if this is possible, would i see a difference in performance using the 2.5" pipes over stock with the twin loop muffler?