I totally agree on both the price and the hard pass. That being said.... There is a bit of an argument for gong the HP tune and credits unfortunately and that is the simple fact of how one might chose to relate the expense to the performance or contingent on the end user Horsepower that they are trying to achieve.
Adding some relevance and to level set. Tuning the Escalade was fun, straightforward, and basically easy. I had it tuned by a guy in Jacksonville. Did an awesome job on the Escalade's 6.2. One tune did both the engine and trans. The Escalade is lots of fun to drive, sounds great, shifts incredibly fast and all of the cool performance tweaks
When I picked up the High Country I decided to do the same thing. Purchased headers, full exhaust etc. Soon after everything was ceramic coated, polished, and installed, the next order of business was the tune. I went with a local guy. He did an outstanding job. The caveat was that in order to tune these later vehicles, you have to tune the ECM and it will run very good. Or for the "full effect" and be like the 2015 Escalade, you have to also tune the TCM because they are independent. That means that its 4 credits X 2. So $400.00 in credits if you want to tune both. If that happens then it's another $300.00 per tune for the tuner or whatever your local tuner will charge. By that point, you're at $1k.
There's more. In order to tune the TCM you have to send it HP Tuners to unlock the module. Once it's unlocked the tune can be done. In my case, I did not want the truck to be down waiting on my TCM to go back and forth so I purchased a new one from the dealer but then also had to pay to get the TCM programmed to my VIN. That was another 150.00ish for that plus the 17.00 in shop fees which... Shop fees? Ok whatever. I literally lost track exactly of how much exactly but if you factor in purchasing a new TCM, getting it programmed then getting unlocked, then tune etc... It is somewhere ~ $1,500.00.
Lesson learned or if anyone wants to save some $. Remove your TCM and send it in. Or purchase a used one, still have to get it programmed and send it to get unlocked or I think HP tuners offers some on their site. Either way it's a process and was much more expensive than tuning the Escalade, the crew cab, or the supercharged ECSB.
Would I do it again? Based on the results. Absolutely but I would see where I could save on some time and $ wherever possible. It helps that I have an extra TCM now just in case. LOL
The tune is amazing. I super impressed and happy with how much it woke up my 6.2. We did some tweaking to both the ECM and TCM recently with significant results. Interestingly enough, I am not a racing type. I am the type that likes to have the power whenever I might need it. Thus some of the parameters are not pushing the performance envelope but we made use of most of the available power. As an added bonus, I don't tow with this truck. So when I hit the two mode button, the tune is a bit more aggresive with better up and down shift points. Basically better / sport performance.
I am glad that is done and over as I can now move on to the next set of mods. When those are done, I will likely head back to the tuner to compensate for new gears and some mild engine work. The mods are never truly done. LOL