Ok so I'm new to the Fox body Stangs, sorta. So how does the tuning work with these cars? Do you have to buy a chip? Or what? On newer Stangs I know it's just a tune from a tuner and you can maximize your mods potential, well even more so buy actually taking it to a Tuner, but email tunes work quite well regardless. So I'm just curious how that works with these cars. Also my speedometer needs to be recalibrated thanks to the 4.10's lol, so how do I go about fixing this issue? Thanks in advance. 