hi, this is my first post, but have been reading for a long time- any way i built my own twin setup for my 02, this past june. i used an s400 that had a john deere race cover on it- came with a 72mm inducer comp wheel, 88mm turbine exducer, and a 1.32 exhaust housing. it worked pretty good, but in the back of my mind i wanted a bigger comp wheel, so i put a 80mm/110mm ett comp wheel in it and had the comp housing machined, what a difference! actually spools faster than before and way faster on the street. i bought this turbo on ebay- it was a brand new take off of a john deere generator for $400, $130 for the 80mm wheel, and $70 for machining, altogether i have $600 into this turbo, a new s480 starts at $950. i am pretty happy with the way these twins work. DuramaxPowered got a ride in it, and i think he was impressed with them. the guy's name on ebay is "saulg"- deals with alot of factory takeoffs