I purchased a Procharger for my 2021 Silverado 6.2L and I'm required to send my PCM to HP tuners for a PCM exchange, which I was told by Procharger and HP tuners that this was a 5 day turnaround, and it has now been 3 weeks they have had my PCM. They claim that they dont have anymore to exchange, they are expecting a shipment of some more last Thursday, but of course, they didn't receive them. This truck is my everyday driver and I pull a trailer for work, so as you can imagine, this has hindered my business a great deal and has gotten quite expensive having to rent a vehicle during this time. Procharger is telling me that HP tuners is the ONLY company in the world that can modify a GM PCM, but I've looked at other superchargers online for my vehicle and some of them say you have to have them tuned locally. Can anyone shed some light on this or explain the process to me. thanks in advance for any input.
