Originally Posted by EuroSpec_92
I just finished boosting my m52b28 Id like to know how big of a difference a tune makes and who or where i can get one done. Im currently running 7psi and the car is very sluggish until top top end of the power band.
Tune is *everything*. If you're not tuned you're not getting nearly the benefit out of the turbo, and you're running the risk of damaging something.
Who can / will tune it depends on what engine management software you're using.