Featuring a sleek handheld design, the Predator is a state-of-the-art high-performance tuning flash programmer. Once connected to a vehicle, the Predator's internal computer recognizes the vehicle's PCM and automatically selects that PCM's proper tuning files. The Predator's memory stores the actual tuning files that optimize spark timing and air/fuel ratio curves. Transmission parameters are remapped to improve shift characteristics, such as points and firmness. Unlike other tuners, DiabloSport's programming happens in very small increments over the entire RPM range for a smoother, wider, more predictable power delivery. DiabloSport engineers worked hard to ensure that Predator tunes are the best they can be.