KICKER SubStage Powered Subwoofer Upgrade Kit for 2011-2018 JK Compatible with Jeep Wrangler, Four-DoorVehicle Specific Solutions KICKER delivers the thrill and musical accuracy of a live-concert experience minus the crowds, putting high-performance audio specifically made for your vehicle right there in your front seat. It includes big-bass subwoofers in a small space, high-efficiency, low power-draw amplifiers, a unique sound signature from multi-channel amps with DSP, and all in factory mounting locations with no modifications. Simple Install - No Modifications A KICKER VSS Upgrade offers: No cutting, mounting directly to factory locations Cosmetically, original factory look Computer-optimized, 32-bit digital signal processing tuned specifically for your vehicle Minimum impact on your vehicles charging system 3-year warranty (parts and labor) when installed by an Authorized KICKER Dealer