[JCunningham]

My car is now tuned with SCT BDX for my current mods but im going to get it retuned with HP. adding E85. If I buy a MPV12 can i download my current modded file from the ECM with the MPV12 and save it as just a file that i can re enter into the car after I use the sct to put it back to stock. I want to unmarry the sct. I also want to download the stock GM file. Im going to be buying a MPV12 with 4 credits then driving to my tuner in May. so I want to have the modded file in when i go. My brother needs the sct now to do his Silverado speedo and trany corrections. I want to drive my car in April with the modded tune. It ran way to ritch with the stock tune and my mods.
so basically are HP files just files or does it only allow 1 tune to be downloaded from the ecu and then it considers it a stock file. I want to download the modded tune file with hp then put it back to stock with the sct. Then download the stock file with the HP.