Its safe to say that I will ultimately be boosting to more than 11psi. I'm still waiting to see what a few of the mod companies (CAPA, Herrod, Nizpro, DNA motorsport, APS) come out with before deciding which way to go. And as for the covering the entire front section, air still flows through the intercooler, you do loose some radiator efficiency because of this, but if you are serious you will upgrade the radiator to a much larger item at the same time. At the end of the day its just a question of what your aims are, and mine are high. PS check out my website for my 200SX if you want some idea.. http://www.200SEX.com.au Regards, Kris.