ok so i have really been driving smarter and lately it seems that when im in econo mode on da freeway i can only go 60 and keep the 600* egt while i can switch it to stock and pull about 70 and keep it at 600*. Is it cuz the tune is made for in town drivin thats the only soultion i see. oh i got 4:10's with 285/75 r 16 a/t's @ 75psi. I avg 18. but thats on stock. 15 on econo.