I have a 2017 mustang gt manual transmission. You press once to enter accessory mode. The diablosport trinity still won't read the car though.

Does anyone on here still do custom tunes?

Any help would be appreciated.

I am looking for a tune for my 2017 mustang gt, the maf tube is to large for when I drove it after installing the cai it felt bogged down and the rpm's were all over the place. I also have a borla 3" exhaust. I am looking to get the most out of the vehicle.