I think the G30's will hit the spot. the 25's spool is no doubt awesome but I don't need it quite that early, 500-700rpm later is fine, just want some more headroom.If your wanting over 1000 hp imo there is no free lunch where your gonna have stock like spool, gotta loose some at the bottom to gain some at the top it's just physics imo
My latest gtr is making almost 1100 hp at the wheels so about 1250 crank hp on pump fuel 2 bar of boost, but the turbos are a gt37 size turbo motor pulling strong by 4000 rpm but don't make full boost til approx 5500 rpm
- Whereas my road gtr gt30s full boost 3500 rpm 928 hub hp 1.8 bar on e50 and turbos are flat out it just won't make anymore power
Few other problems to deal with and some logging / driving to do, but I think the G30's will do the trick once everything else is sorted.