turning back the performance tune for highway trip
Posted: Mon Nov 29, 2010 1:36 pm
part #253555, model U7141. I have a 2010 mustang GT. Changes made to vehicle is installing a SteedaCold Air Kit#555-3152 , installing magna-flow axle back mufflers, and then the Diablo sport u7141. I am planning a road trip, do I need to tune it back to burn 87 octane. It is a lot less expensiive to burn 87 octane on a long trip than 93 octane.