Just had my diverter valve changed by a friend, the one he took out had about 5 separate tears in it. New revision D is in and the car feels totally different, it'd definitely been under performing. When he got to the diverter valve and took it out it was covered in oil, he seems to think its from the turbo. He couldn't investigate it further as his boss was closing up, could this be anything else other than the turbo? Could it be caused by the split DV?