1. Shorten the response speed of the electronic throttle 2. Improve the electronic throttle's sensitivity 3. Plug and play without external power supply 4. 9 modes adjustable What is electronic throttle controller ? electronic throttle controller is a throttle response controller. It removes response delays on your electronic accelerator pedal. Effectively, it allows your engine to respond faster. As a result, your car can accelerate faster. About the acceleration principle: By adjusting the valve reaction efficiency, the car throttle is more sensitive, the reaction speed is faster, and the instant start, the effect of one-button overtaking does not affect the original car function, nor damage the car engine! Fit: for Jeep Wrangler JK 2007-2018 for Dodge Challenger 2008-2019 / RAM1500 2009-2018 Color: black Material: ABS Package Contents: 1 * electronic throttle controller host 1 * accelerator pedal cable 1 * English manual 1 * cable ties