i for sure did not replace a gasket when it was installed. would you happen to know where to find a good replacement gasket for it? i have noticed hesitation under heavy acceleration. would that be a sign of the turbo going bad? haven’t noticed it burning much oil thoughIf you did not replace the gasket when you installed them, then that would be a start, but it is your PCV system. These cars are notorious for having copious amounts of oil vapor in the intake system. Adding a catch can (A good one) will help with this, just make sure it is set up right. You will want to pull your intake and intercooler piping off and give them a good cleaning to get rid of the oil vapor.
If the car is burning a lot of oil, you may want to check that the turbo is healthy, but if it shows no drivability issues or smoke, then its just oil vapor seeping from a worn gasket.