Hello. I'm from F150online. After reading much positive reviews on the PHP Gryphon custom tune I have decided I want one. Before I place an order I have a few questions.
I'm getting a wheel and tire package soon, if I order the custom tune now, will I be able to re-adjust for the larger diameter size later on? ( I think I know the answer is yes by what I read in the Gryphon install PDF file, I've looked it over so much I already know how to work it

)
Other questions I have are about the tuning. In the order forum i'm a bit confused about what tunes to order. I know I want an economy tune, and a performance tune. Will running 87 octane still have a good affect on the performance? Or should I get all tunes for 89 octane?
Hope I can get these questions answered so I can order by the end of the week. Thanks!