I should also add... for those that are having the "lope" issue to get your injectors checked! Please do not take your truck to the dealer as they really have no idea as to what the are doing! Go to a diesel shop get a "return test" performed. I went first to the dealer with the lope problem, they ...

Good luck with your predator... had same issues a few yrs back with my 05, heavy lope.

Installed new injectors removed the predator and the last 2yrs have been lope free!!

Now as for blaming diablosport for engine lope, ya might be barking up the wrong tree. I say this because 2 other co-workers ...

S! Having rough idle issues with the U7130...
Cal ID #25325353AG
its running the 8r29, born 07/09/2007

when bought it had the 8r27 version which gave me the rough idle and sticky throttle, was updated with 8r29 and seemed to run ok, until winter weather and colder ambient temps. Truck ran rough and ...