Originally Posted by sgtpeper
I'm about to flash my car and I'm wondering which map is the correct map to flash? I live in Denver so I'm a mile high... This is the first mod to the car.
Also, do you really need to put the car on a trickle charger when flashing?
The off-the-shelf maps are fairly conservative and not dependent on altitude. What matters more is the available octane in your area; just use the respective map (ie. 91, 93).
You don't need a trickle charger if you have not seen a low battery warning lately. The first time install should take maybe 15 minutes.