[arekuf3x]

I have a n55 ewg with pure500, 200 cat, intercooler, made about 460whp on custom e30 tune, b58 hpfp was the limit. But on 91 octane, only made 403whp with ots mhd ps2 tune. This turbo spools just as fast as stock. With custom tune on 93, I think 420-430 would be possible. Pure stage 2 or pure750 can do 450whp on 91. But those turbos would require dropping subframe and it be 2x more labor cost + turbo, compared to pure500 turbo.