Ran the rollers on the weekend and rolled a 530.1 hp and 1063 lb ft of torque on my 05 LLY duramax. PPE dual feuler tune (tune 10) with no timing stacked with the Van aaken 180 HP box on high. I also have a Mcrat s300 turbo and Dual fuelers. Not bad for off the shelf tunes! Im going EFI live now to see what shell roll up!