Hey guys, ive only had my R34 gtt for about a month now, just joined tonite! my car has a full 3" exhaust, and safc2 ( i think thats all but not sure, im the first owner in aus so you never really no wots been done in japan) and i got my apexi retuned on thursday at unique Autosport, and made 183rwkws at 8psi! they were real suprised! as was i!! so 160 should be ezy! just my 2cents