Well I got my silvia, its a 91 w/ sr20det. It has a blitz boost controller, pro blow off valve, turbo timer, blitz full exhaust w/ down pipe, and some other stuff I cant recall off the top off my head. Its like night and day compared to the rex, but the rex is still my first love. I only paid 2k for it and it only has around 88,000 klicks on it. Anyways I better go guys, peace