My seat-of-the-pants-o-meter says my new Aurora 2000 turbo moves WAY more air than the previous 088 kit I had on the truck. The wastegate lets it spool up almost instantly, even with the added length of my intercooler plumbing in the mix.
Russ is right, no ball bearings, but with the nice cool EGT's of a diesel it should last a LONG time. Nice full 3" downpipe, and plenty of air coming in through the 4" inlet. I'm using the stock ATS airbox in favor of the open-element style intake I had on my 088 kit, in an effort to keep the most dirt out of the turbo. I am also using the factory air snorkel that goes from the grille area to the air box, as outlined in the ATS instructions.
I've shortened the wastegate rod as much as possible, and can only get 9-10 psi out of it, due to a lack of fuel. I'm sure it'd build more boost if i had some more fuel, but I haven't turned up the pump mainly because I haven't had a lack of power. It's a totally different animal now with the trailer hooked up, and mileage is decent too, despite having 4.10 gears and 285/75 BFG AT's on the truck.
Ryan