I have read the numerous posts about how to engage Performance shift mode if your vehicle wasn't equipped with the switching necessary, but i havent been able to find anything on later models such as 05+, i have an 07 GP GT and was curious as to wether or not it was integrated into the PCM's of that model year. And also if it were if i could use the DHP 05 GP PCM for the tune, since they do not make one for 06+, and have no adverse effects to my normal operations. I apologize if this has been answered i couldnt find enough info to to give me the answer i was looking for. Thanks in advance.
