what a piece of crap. PA50M is the PA50I of europe. designed for 20mph, a little coaxing got this just shy of 40. though with a polini that's rather depressing. You do need a pipe for a kit to work right, true that is. This used a '77 "Better than Stock" exhaust, which is really just an empty stocker. kinda wussy but yea, better than stock... Got a friend's seized polini dirt cheap, salvaged it as best as I could, ran fairly well considering. most everything else mix & match painted stock bits. notice any trends to my builds? They're all crap and I put no money into anything. ha