overboost?

[Luca12]

im still getting a upper limit exeeded code but the cars running stright off the n75? some times theres a burst of power but usally its dead. I bought a n75k valve (i think) would that be messing it up? no other codes at all.

[csre9]

im still getting a upper limit exeeded code but the cars running stright off the n75? some times theres a burst of power but usally its dead. I bought a n75k valve (i think) would that be messing it up? no other codes at all.

Was it the race valve or the stock?

If you bought the race there have been cases of over boosting...