Hey everyone, Im currently in the process of picking up a boosted IS from what seems to be a reliable seller. The car has a built motor with gte rods forged pistons low compression etc. It's currently running a turbonetics kit at around 6 psi on a street tune through greddy emanage ultimate. The car does have a stock auto trans. (which I will get built when it blows, maybe just a trans cooler meanwhile.) My main concern is getting the vehicle tuned I read that its a bit difficult to tune these cars, and that many people do a piggy back method. I'd love some insight on that topic, and also someone could recommend a good tuner in so cal that would be great. My plan for the car is to keep it auto as a sleeper and daily driver try n get a flex fuel sensor, injectors, bigger fuel pump, and e85. Aiming for 500-600rwhp. Im a bit familiar with 4cyl turbos but mainly spent a lot of time in the v8 scene. I also have a built heads cam forged internals GTO that i plan on boosting, and a GsxR 750. So this will be my fun little four door commuter.