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Calibrate your Jeep to fit with your off-road ambitions. The Flashcal offers various Jeep-specific features like real-time idle up speedometer correction and transfer case gear calibration. Available features and parameters will pop up automatically on the display once the Flashcal is plugged into your vehicle. Off-Road Performance The Flashcal’s off-road features include the ability to recalibrate your Jeep’s axle gear ratio to improve 2WD shift points. Modify the transfer case gear ratio to improve your 4 HI shift points or your 4 LO shift points. Adjust the psi threshold on your tire pressure monitoring system so that you can deflate your tires for off-roading without sparking any annoying warnings. The real-time idle-up feature lets you set your Jeep to maintain power to auxiliary electronics at any preset rpm up to 1600. So you can power a winch or off-road lights while parked or idling. Advanced Options With the Flashcal you can raise the stock speed limit setting on your vehicle and you can recalibrate your factory speedometer to correct for various tire sizes.