The Bully Dog Triple Dog GT Gas Tuner is now available for 2007-2013 JK Jeep Wranglers. You can customize your vehicle's off-roading and performance needs while keeping an eye on the rig's vitals. Special features include tire-pressure monitoring, idle adjust, an engine fan shutoff for water crossings, and the ability to completely disable traction control. You can even change speedometer calibration and shift points for tire size and axle ratios, disconnect the anti-roll bar, and lock front and rear diffs in 4WD Low, 4WD Hi, and 2WD. MSRP: $588.