JP refer back to this post
So basically to make it VERY clear these tunes are made for YOUR SPECIFIC car. We write new files for each car getting a tune according to what mods you have, what preferences you want (as long as it's possible to do so) and how you want the car to behave (in some cases we might have already done a file for an 04 zhp with x y and z mods on it and if the software is the same version we will just give you that file to save you an hour of your day). These aren't piggy backs or mass produced tunes, these are good old fashioned ECU flashes on a customer by customer basis. Thats how we roll and part of what makes us and our tunes stand out.