Quote:
Originally Posted by future370zzz
Sorry, I used the trial and error method. 
EDIT: Maybe because my side pipes are just 2.25" in diameter and should be 2.5" to match the exhaust diameter in theory. |
You may be right about that. I've been reading over on a porsche forum where a guy has been using this approach over a long period of time with not much success (he may finally get there, haven't finished reading all 9 pages) but I think where he's failing is that he was using 1.25" pipe on his 2.5" exhaust