I have a 2010 Chevrolet Silverado with the 6.2L engine and would like to get a custom tune made for it. I am just wondering what I need to do to get it started. Everything is stock on the truck. And what I am looking to get out of it is better fuel mileage and good with towing.

Can I use the program for the GMC Sierra 6.2L instead of the Silverado 6.0L?
And are they coming out with some tune for the 6 speed tranny?

I restored the backup and reinstalled the diablo tune and now it works fine. But I noticed if i keep the trinity plugged in the it will do it once in awhile but when it does it i push the connection wire into the trinity and hold it for awhile and then it stops so i dont know if something is wrong ...

I just bought a Trinity programmer for my 2010 silverado 1500 with the 6.2L and I installed the diablo tune and took it down the road a quarter mile and the service stabilitrak came on and the speedometer was fluctuating periodically for 0 to 60 no matter what speed I was going and the shifting ...