I Have an EFILive box and I have only tuned gas and I dont want to even attempt to tune a diesel as they are 5x more than a gas engine if I make a mistake. I have a friend with an 09 LMM and he wants a tune. He is willing to buy one and buy a license so I can flash it for him. My question is where is the best place to purchase a tune that I can flash in for him. He mentioned something about buying a DSP5 switch also so I assume he will be looking for that tune. Thanks in advance.