Fits: Dodge Ram Quad Cab And Crew Cab 2002-2018. Vehicle specific ThunderForm enclosures are designed to utilize space in vehicles that would otherwise go unused to add a subwoofer enclosure. These enclosures are highly durable and provide a custom fit so that you do not have to sacrifice cargo space for added aftermarket performance. This model includes a built in amplifier and dual 10" subwoofers for an unbeatable listening experience with a stealthy factory look.FEATURES Loaded with Dual 10" Subwoofers Integrated Amplifier Easily Connects to Existing Systems Rotationally Molded Design Fits Under Rear Seat With No Loss of Leg Room EBC and Wiring Harness Included. DOES NOT FIT MEGA CAB