The Mini Maxx has an optional Transmission Tuning feature for the RAM 48RFE & 68RFE automatic transmissions.  This can be purchased with the tuner or after the fact.  The unlock code is specific for your VIN, we require the last 6 digits before we can order the unlock code.Once you receive your unlock code you will input this during the PCM flashing process, the tuner will ask whether you have this code.