THat a very similar setup to what i'm planning on doing. But to properly use the stage 1 cams(or any other cam) you need to have to properly tune them on a dyno with a hondadata and cam gears, I'm, with tiger though, the exhaust system is a bit restrictive yet. Try a header with a 2.5 inch collector, with a 2.5 cat and a 2.5 inch cat-back, i like the hytech, but it is VERY pricey. Also i think a 70mm throttle body is a little large for a n/a teg. BUt all in all its a good setup from what i've heard, you should be push upwards of 190whp, i think, on a GS-R anyway.