My 04 lib Gt auto now has the Sti 2.5 bottom end with Gt heads free flow mufflers haltech piggy back with custom tune with that done it reached 158kw atw on 12 psi which was great, but then today I had a CAI fitted, service, upper cylinder clean and re-tune and now it has 148kw atw! WTF!!!!! The tuner whom I won't mention said he thinks the factory ecu might have torque tags causing a drop in power and the power curve on the dyno sheet is up and down and all over the place, he says he can't access the factory ecu to check the codes or re-flash it so does anyone know where I can get this done in ACT or SYD? With a tuner us liberty owners can trust? Also my turbo is on the way out it's a IHI VF38 my tuner recommended a VF34 replacement does this sound right?
Cheers, chook