50 trim is bad ass!!! i used one, and i loved it, made boost in reasonable time, the biggest i would ever go is a 60 trim, a 60-1 is useless on a dsm, they suck, they lag 400 rpms more than a 60 trim, and they dont make any more power than the 60 trim...the 50 trim is alot more street friendly, check out garage advances line of pte's, they are nice...and jeff, please stop talkin about 60-1's, they suck remember, for the 1,000,000th time, dsm's can actually maximize a turbo so they dont have to oversize...