Banks Power 17-19 Ford F250/F350/F450 6.7L Gen 2 Diesel Derringer Tuner (Req iDash)Stops the competition dead in their tracks. Six years of engine and chassis dyno experience developing and selling this engine for military use results in our torque and power gains across the full operating rpm range, starting right off idle and marching to the shift point in each gear. Derringer is dyno calibrated to use multiple data inputs just like your engine's ECU. So its microprocessor based electronics are able to actively and safely optimize