So yesterday it was a coolish night and went to do a little 2nd gear gear pull, and around 5000rpm's I went to shift and then all the sudden the car jerked. The ECL went on and the cruise control was flashing. Since I work at a dealership I ask a tech to read the code. And he told me it was something very minor code and was over boost because of a weak tune (bought the car with an open source tune). Since that I drove it around for a little bit seeing if everything felt fine. And i feel like the car is not making the same power it use to. The turbo still spoils fine and everything. I just doesnt seem it has the same power it had before. Does anybody have an ideas?