jimmylee

Wow Sinister, that is some specialized information I would never have been able to get otherwise. That does partially legitimize my opinions on the poor 2014 tune. Could the 2015 even be better and more compatible?

Good to know Sinister. Maybe a 2016 is as new as I could do. Its seems every first model year chev is a little more tame and conservative than the few years that follow. I have had issues with cold start enrichment in various temperatures. Really hot and really cold. Rough ideal, poor starting, mild shaking, a bit of black smoke on startup. Also some odd shifting characteristings when doing heavy duty towing. Little stuff but still important to me. I have tune 5 other vehicles that I have owned previously. I would like to know if the tune for the 2016's is better or different than the 2014 trucks. Surely some of the dyno tuner guys would know this. They probably get the best gains on 2014's.

Has anyone every tried getting a 2014 truck updated with a 2018 truck tune? I have a 2014 and often rent 2018/2019 trucks for work. They sure seem to be a little snappier and get better mileage than mine. I assume the 2014 tune is very conservative. I don't really want to do an aftermarket tune. I have done programmers, mail order, and custom tunes in the past with mixed results. Most aftermarket tunes don't work well in -40 weather.