i have no clue how this oil catch can works, I just can't wrap my head around it, but as far as I can tell it is the source of the problem. the standard N/A motors got as much, if not more, power than the diesel version, so if you want to keep up with the gas boys I would just upgrade the turbo and intake, and run 2.5 exhaust as 2 1/4 allows for just under 200 HP.