Save on fuel cost! Reduce chine walk! Provide superior lateral stability! The exclusive solid one-piece, full plate design of Cobra stabilizing plates mounts from underneath the cavitation plate, eliminating stress or breakage to the lower unit casting. By lowering your motor's planing RPMs, you'll enjoy increased fuel efficiency and reduced wear on engine parts. Adding this lateral stability also eliminates drag so there is no top-end speed loss. Stainless mounting hardware included. The Edge Plate is designed to fit 70 hp and up models of the following engines: JohnsonEvinrudeOMC Cobra I/OOMC King CobraMercuryMarinerMercruiserYamahaYamaha I/OHondaNissanTohatsuSuzukiVolvo SXForce '94 thru present Lowers your motor's planing RPMs Stainless steel mounting hardware included For 70 hp and up | Cobra Edge Hydrofoil Stabilizer Plate, Black Aluminum