“IF” your tuner can’t work out the very simple boost strategy of a turbo falcon platform he hasn’t even done step 1 R&D
“IF” I tell him how to overcome it you then have a vehicle that’s got a boost error target and how do I know he knows how to fix it ....?
Your tuner might be gods gift but he doesn’t know what is very elementary strategy configuration modifications and knowing what the ECU is doing and commanding is pretty dangerous especially if you say you’re up over 400rwkw already
”IF” in fact your tuner does know what he’s doing but going about it in a very backwards way again this isn’t correct and needs to be addressed..
There is a reason I tune the turbo falcon for some very reputable tune shops around Australia as the factory falcon ECU is going about engine control in a different way to nearly every other make and model car out there, the WRX platform is closest
I’m not being a *beep* but in-fact looking after your engine for you