two of my spoiled ass friends have 00' S4's.(Nice as hell) one just has a fitler and the other has a filter and a custom chip(40whp-supposedly) Since I have a 98 esi a/t with injen intake, muffler.I get smoked all the dam time. I am in the process of putting in hahn stage 2. obviously i'm not going to run over 8psi. Will this be enough or will I have to rebuild the bottem to beat them? thanks guys

98 esi A/t:
injen intake
n1 muffler
white gauges
17' adr sokodu's
coilovers 1.75' drop
obx front strut bar
3 stage metal headgasket
(should of rebuilt bottem when this was done but I'm stupid)