Im new to hptuner got my mpvi2+ yesterday i got a p59 from a silverado 1500 classic OS 12597120
I cant make only 2 bar updgrade no rtt .. that alrigth but my question is for now in running my swap n/a going to boost next year , if i license my ecm rigth now with 1bar did it cost more credit to update later to 2bar or no?
And if i want 3 bar i need to change pcm or i need to license a other Os?
Maybe im better to find a other one with all capabilities but need to make sure it will work with my 2007 dwb stuff