Hello Pablo, A small correction... the AA unit was installed by the owner, Tim (PHATM3). It was a used AA turbo kit that Tim bought from the owner. The owner had Osh pull the turbo from the car. Osh then tried to charge Tim for pieces that Tim had already bought (boost gauge pod)... part of the reason why Osh has a bit of a PR problem. Anyway, Tim took the pieces and installed them on his car himself. Tim eventually sold off the turbo and his M3 seperately.