Look at the dyno graph. He is running a 3076r with the .78 AR housing. Unless he is using a t4 exhaust housing. A friend of mine made 567whp on his GT30R with an .82 housing on his civic.
I am building the manifold myself, with some help from some good friends I have met over the years. I am not the best welder, so my friend shawn will be doing all the welding. I will design, and help fabricate the manifold from beginning to end. I hope you guys are suprised by what I have in store
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I don't know anyone who will have a manifold quite like this, I am using SCH40 316 stainless. I can't wait.
Anyway, go check out honda-tech forums and you will see a lot of guys pushing well over the "rated" power that the turbo is rated. When I bought this turbo it was only rated at 495, now miraculously it's rated at 525.