PDC45986261 ELIMINATE RESPONSE DELAYS in your Dodges acceleration EASY plug-&-play installation that DOES NOT void your warranty 8 adjustable modes: Eco, City, Sport, Sport+ (ECO mode can also be used for better traction in snow and off-road) Improve FUEL ECONOMY up to 20% in your Dodge with ECO mode PLEASE CHECK DESCRIPTION AND AMAZON FITMENT GUIDE FOR YOUR VEHICLE FITMENT INFO Wrangler (2007 and newer) Grand Cherokee (<u>not</u> the Cherokee Trailhawk) - (2007 and newer) Commander (2007 - 2010) Liberty (2008 - 2012) Allows you to maximize fuel economy up to 20% over the stock ratings. It also doubles as a valet mode to keep a driver (or even your newly licensed teenager) from being able to accelerate above a certain rate. For Jeeps, also great for keeping traction while off-roading! Many of our customers say that city mode allows the vehicle to accelerate as it should have from the factory. It gives you the response of an &#034;old school&#034; throttle cable, with a 1:1 pedal-to-throttle acceleration ratio. Gives any vehicle the response and acceleration of a race car, allowing you to get up and go when you need to without waiting for the ECU to catch up to your foot. Perfect for spirited driving or on a race track. Please use with caution!