Hi i like to hear some of your suggestion on modding 1nz-fe,i have a vios ncp42 with the same 1nz-fe but asia's 1nz-fe is making less bhp[2bhp]because of the different head setting...i like to know how to make my car faster?Its automatic i've change my exhaust system and throttle body[1zz-fe 60mm] and a short ram intake,my exhaust system goes like this,1.5 inlet and 2.0 outlet header,2.0 pipe,6 inch long 3.5inch wide bullet,1.6 pipe,9 inch long 3.5inch wide bullet,1.6inch pipe,2inch inlet&outlet s-flow muffler[ho-flow].