Diablosport Forums

New guy here, I have an 09 GMC Sierra with the 5.3 and 6-speed trans. Pretty much stock other than the magnaflow muffler and intake tube. I just purchased the Predator and already have turned off the DOD. My question would be I already installed the Diablo performance tune and was wondering how to raise the rev shift points. I'm new to this tuner things so any help would be greatly appreciated. Thanks!

there is no tcm/tranny support at this time for your vehicle... so you can not change the tranny shift points...

06MonteSS wrote:there is no tcm/tranny support at this time for your vehicle... so you can not change the tranny shift points...

Oh, ok. Is there anything else I can do with this tuner, before ordering a tune from you?

I have the same truck and second that question as to what I can do with the tuner besides loading the diablo tune??
can I change the speed limiter, tire size etc I dont want to do too much playing around until I get some advice as I dont want to screw up anything

I have one other question while here what is the DOD and what does it do?

[quote
I have one other question while here what is the DOD and what does it do?[/quote]


Its the 'Displacement on Demand' where the cylinders drop from 8-4 when driving. The Predator has the capability to turn it off.

Ya dod sucks! The chevy dealer said "you can't tell a difference" bullcrap I can't! If I wanted a 4-banger I'd get one dangit!

Yes you can change tire size etc...if not sure what somethin does post up and we'll help ya!

do some data logging, get your fueling adjusted... doing that will give you better throttle response, and a little better acceleration, pull... etc...