I posted this in the other thread, but it was a pretty old thread, so here it is again..
I think the Rotrex kit would be perfect for the BRZ/86
Here is the dyno chart from the old setup on my MR2 Spyder (C30-94 Rotrex, a2w IC, Hydra EMS, forged internals, DIY head work, etc).. This is from a 1.8L 1zzfe that originally made around 125 rwhp. Boost was around 16-17psi, c/r was 9.0:1, gas was California 91-octane pump gas