Our Rear Exhaust Kits deliver performance and cutting-edge style to your Sea-Doo Spark 3up. Allows for removal of restrictive sound suppression system located between water box and hull exit. Improves engine performance by reducing back pressure and restriction. Includes mandrel bent aluminum exhaust tube that is powder coated to prevent corrosion, large billet thru-hull exhaust outlet, OEM exhaust outlet block-off and high-temp silicone couplers along with all necessary mounting hardware & installation instructions.