Well I just got my Gryphon today and quickly installed it. I think I can patiently wait on my custom tunes and just leave my truck on 0 (stock). But running level 1 transmission only shouldn't be a problem at all right? Seeing as how it has no engine modifications.?.? While I wait I guess I could try to figure out how to put in my tire size. 35x12.50x18. Anyone have this size and remember the mm value?
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