my max boost is around 20 psi in 3rd gear at about 3k rpms,it throws decent smoke for a dp tuner.if you checked my sig,i have 3.55 gear and 35in rubber,so that isnt helping out any,but i alsoo thought it was slow myself but i have never driven another one so who knows.seems to operate fine though.whats your 0-60?do you take off in 2nd when you race,give me some tips here.