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NOTICE: We have to have the last 6 digits of your VIN# to get you the correct unlock code. Please call us with your VIN# or e-mail it to justan@alligatorperformance.com H&S Performance is proud to announce the "OVERDRIVE" software. A finely tuned engine is worthless if that power cannot be transferred to the ground. In order to meet the high horsepower and torque output of the 6.7 Cummins engine, we have modified the transmission tuning software to better "put the power to the ground". The H&S Overdrive software is specifically tailored to H&S engine tuning software, and will ensure that you get the best performance and reliability out of your transmission. Black Maxx and Mini Maxx owners will have the ability to use their existing units to load the "Overdrive" software. Using the H&S downloads section, you will simply update your tuner to the latest software level (Software found HERE). Once the tuner is updated, the transmission tuning software is ready to be unlocked. Once the software is purchased, you will receive an e-mail from a representative of H&S Performance within 1-2 business days. This e-mail will contain your "Overdrive" unlock code. Do NOT lose this code, as you will need it if your truck is ever returned to stock, then re-tuned. IF you lose your unlock code, you will need to purchase another one. This software is LOCKED to your VIN number, and cannot be used on any other truck. Please do NOT call H&S unless it has been 2 business days and you have not yet received your transmission unlock code. | 
