Derringer (Gen2) Tuner with ActiveSafety 2017-19 Chevy/GMC 2500/3500 6.6L L5P Banks Power GM Avalanche/Escalade/Sierra/Sierra Limited/Silverado/Silverado LD 9 percent (OEM avg 28

Derringer (Gen2) Tuner with ActiveSafety 2017-19 Chevy/GMC 2500/3500 6.6L L5P Banks Power GM Avalanche/Escalade/Sierra/Sierra Limited/Silverado/Silverado LD 9 percent (OEM avg 28Stops the competition dead in their tracks. Results in 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 such as throttle position, rpm, vehicle speed, AFR, Knock and coolant temperature, just like your engine's ECU. Its microprocessor based electronics are able to actively and safely optimize calibrations in real

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