The ECU always learns thats why these tuning boxes are not the best as the ECU will learn something is not right and go back to standard form.

These engines seem to be getting around 390BHP standard as the rolling road day we had 390BHP was the lowest and from other sources I've heard 380 to be the lowest anywhere. Not sure why mine has over 400 to be fair but when i spoke to everyone they all have run theses in (500-1000miles) where I've booted it from day one and it seems to have paid off.

Would like to go for an forge intercooler and high flow air intake. Hear i can get around 450BHP before i need a better turbo.