DS18 JL-SUB10/LR Wheel Well Subwoofer Enclosure 10" Sealed Left and Right Side for JLU Jeeps We have the perfect option for Jeepers that want massive bass and still save room. DS18 now has developed custom fitted prefab boxes for 10-inch subwoofers, just for the Jeep JL. This tightly sealed box comes in both L and R side and fits snugly into the concave rear openings of your rear cargo space. Now you can have the comfort of having 10-inch bass and still have a custom look and have all your rear