If the turbo has minimal shaft play and the car doesn't burn significant oil (less than .5qts per oil change), just remove the bajo bolt filter, and change the oil with synthetic every 3.5k. It'll be fine on the stock turbo as long as you maintain it. If you start hearing bearing whine come from it one day, rip that sucker out of there and replace it with a vf39 or something more fun ;-)
The problem with many of these is that the factory oil change interval was suggested at 7.5k miles, so crap builds up in the filter screen and clogs oil supply to the turbo. This results in acute catastrophic engine/turbo death.