just for reference. Some of the supra guys have tried the ICs with good luck. One person even tried a full ebay kit and did 700rwhp on the kit. The only thing that wasnt ebay was the turbo i think. I think the IC would be fine to honest. For us its a big savings compared to a greddy 3,4 row (1600bucks). The only question is how long will it last?? But since its not really a moving part the only thing that needs to tested is to make sure it holds pressure and doesnt leak.
We have also tried the intake manifolds with no luck yet. Intake manifolds on ebay cost about 700bucks versus starting at 2000bucks with any of the big named intakes.
I dont trust the turbo kits or Intake manifolds or exhaust manifolds yet. stay away from them