They both have the same tunes. The Trinity can do anything the Predator can do and more. I believe its supposed to estimate hp, torque, and quarter mile times along with alot of other info on the screen. Speedo, tach, and the rest of your guages can be seen on the Trinity. For the price i bought the Predator just for the tunes and datalogging. The Trinity is more like a luxury piece.
Brilliant Black Crysal Pearl SRT8, 5% Tint All Around, Airaid CAI with scoop, 180 Degree Thermostat, MagnaFlow Hi Flow Cats and Catback,4 IN. Rolled Chrome Tips, Diablo Sport Tuner,93 CAI Tune, BT Oil Catch Can, Quantum Blue Oil, Gold HP Coolant, Power Steering Additive, BND Differential Oil.