Vented subwoofer enclosure for select 2020-up Polaris RZR Pro XP 4-seat models Maximum bass for your RZR Pro XP Want to add even more bass to your RZR Pro XP's aftermarket audio system? Rockford Fosgate designed this direct-fit subwoofer enclosure for life on the trail, with Element-Ready™ design and plenty of thump. The enclosure comes loaded with an M2D4-10IB Color Optix™ 10” subwoofer and works in select 2020-up Polaris RZR Pro XP models with or without RideCommand. This secondary sub is a terrific addition to your Rockford Fosgate Pro XP Stage 4, 5, or 6 audio system.
