Out of curiosity, if i were to fit a forge valve, would i need to worry about mapping it in or will it work with the current settings, im told that my car has a stagr 1 revo map but from what i can see that and the exhaust which is cat back i beleive with a cat delete also performed (even though the cat is still in place) are the only upgrades as of yet by the previous owners, personally i would say its 100% been mapped as no way is it standard 150 bhp, same question goes if i were to fit an fmic?
Forgive me for what might seem common sense questions but im actually a very experienced mechanic however not with turbo charged systems.
Thanks
Luke