Ok guys I am new here and have a question. I bought a used predator tuner for my c&l racer cai. Just placed an order through bamachips for 1 tune since they do not offer tunes for life with the predator. Anyways, I need recommendations on what tune to put on this daily driver 07 GT?. The octane lvls in my state are 87/89/91. I do plan on buying a 2nd tune here sometime soon.