After establishing the base run, we used the PPIII to increase the top speed limit and rev limit of the stock computer. Compare the horsepower and torque curves seen here (using the PPIII programming) with the baseline graph. The graphs illustrate the (max) gain of 4.9 hp and a 10.8 ft-lb increase in torque with the PPIII programming versus the stock ECU setting. The real numbers for many truck owners, however, are revealed in the accompanying Dyno Chart 1 (stock) and Dyno Chart 2 (PPIII-programmed). There we see significant gains in torque, and to some degree horsepower, low in the rpm band. If you're hauling or stump-pulling, that's exactly where you want the muscle to be.