Z1 sells a NA 400hp package now:
VQ37VHR 400HP Package
I have long tube headers instead of shorties and a very free flowing exhaust so I figure 400hp should be no problem since I will have all of the other parts. That is only ~310ft lbs though. I think that is do-able for a stock clutch but pushing it, which is why I am looking to go one step up from a stock clutch, just to make sure.
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15' Nissan GTR Previous Toys: 15' Nissan 370Z, 12' Nissan 370Z, 00' Chevrolet Corvette, 00' Toyota MRS 2ZZ & 6MT Swap