No difference IIRC..........and, no a straight pipe wont cause a fail. the only time it MIGHT be an issue is if you get pulled over for an inspection by ministry of the environment or OPP who wants to be a prick....and even then, like you said, its exempt and you win in court and get damages out of the deal

Also, its been a couple of years for me--but IIRC that u-pull down by bell river in your area does (did?) inspections without being "overly critical"

about what they find.
[This message has been edited by MidEngineManiac (edited 02-21-2010).]