scoobysports are pretty good, very popular on the Eurocars, but, ive talked to many people who had problems w/ them rusting, even the tips... but most people will agree that it sounds great.

i know on the GC8's (back when they were new ) they really promoted backfiring and popping, well, not more than usual... just alot louder. i think SOA put out a voluntary recalll to have the fuel map reprogramed... but i shoulda went and had it done now that i look back on it..