Quote Originally Posted by 2xls1 View Post
Short answer is no you can't buy Tunercat OBD2. The TC OBD2 version they sold to Jet is the pre-CAN Bus tuner. Tunercat version for CAN Bus vehicles which your's are was only available to purchase if you were an original TC customer before they sold it to Jet. The definition files and seed keys can only be purchased by TC original customers AFAIK. Jet has their own way of licensing. There was a TC version you could buy from Moates if you purchased one of his Roadrunner PCMs but Moates has closed up shop. John at TC supported those units too and would probably sell def files for those customers. I'm not sure if you could even buy the CAN bus version from Moates. And even if you had a TC CAN bus version you couldn't use it on a 2019. TC support stops at MY 2018 on the trucks.The seed keys are for the 2017 and 2018 trucks. Even with HPT, that ECM (2019) would have to be sent to them for their unlocking service. Probably why TC doesn't support them or anything newer. 2019+ vehicles are very expensive to tune.
wonderful. thanks for the explanation, i've been having trouble finding all of that succinctly in one place.

*minor correction - the 2019 suburban has the same ECM as the 2018 silverado. the suburban was wierd because they didnt update it at the same time as the silverado

I looked into EFI live as well but it seems as it the cost is close to ~1k just to get started!! $625 for flash scan, then $400 for the GM license? Wow!!!

honestly, i dont mind paying to an extent, guess i've just been spoiled rotten by the open source stuff that we use. You can buy the wester's garage tunercat package for ~8k, which basically allows you to tune however many vehicles you want. You can also bulk license HPT bulk license for a year or OS i think.

Problem is, a "little guy" like me who tunes ~50 vehicles a year rather than ~500, i cant compete with the big guys on cost, because i'd have to license each individual vehicle, and its not worth the investment for me to get the bulk licenses.