Solas ST-DF-13/19 DynaFly Sea Doo impeller will give increased acceleration and top speed 2+mph. The Solas Seadoo impeller is great for pulling skiers to racing. Solas This upgrade over stock Sea Doo Impeller fits RX DI 01-03, RX 00-02, XP DI 03-04, XP 00-02, LRV/LRV DI 00-03, GTX 00-02, GTX DI 00-03, GTX Ltd. 98-99