I'm looking into getting a tune for my svt and dont know anything about aftermarket tunes. I love my car but hate the bogging in 1st, I work at ford but have never dealt with aftermarket tuners. So my question is If I get a predetor that is for lightening can I pay the $150 and get it changed for focus or does the $150 just unlock the vin. I can get a lightening one for next to nuthin thats why I'm wondering. Any help would be appreciated.