just letting everyone know i have an s13 with sr20det and i just bought a ebay intercooler for 250 shiped and im completely satisfied with it, i had to do some modifications to fit stock recirc valve but the core is excellent i gained prolly around four of five cars with this thing, (tested against my firends 300zx 18lbs and his 20 lbs boost) with my intercooler pushing 16 lbs, the brand name is godspeed, just helping the bargain buyers like my self great alternative to greddy m spec.
p.s. dont say anything about my boost ive been pushing over 15 lbs daily on stock side mount for over 7 months and car is still in perfect running condition