STINGRAY HYDROFOILS - XR4 Senior Hydrofoils for 40-300 hp Boats (Grey) - Perfect for Water Skiing, Wakeboarding, Tubing - Engine Stabilizer Fins for Outboard/Outdrive Motors - Made in The USA

Fits perfect and easy to put on, but it’s a leap of faith to do the required small holes drilling through lower unit anti vent plate. My boat planes a bit quicker and will stay on plane at lower speeds which is the main reason why I got it for the slow cruises with the wife. Don’t use it top speed too much but the foil makes it more stable for sure.

Easy to install. Boat hops up on top of the water and stays there at lower speeds. Easier to see over the bow.

I researched props and hydrofoils for quite some time. I have a Volvo 5.7L with a 19pitch prop. Have plenty of power, boat would just not plane out. Thought about messing with props, but chose to start with the XR4. Previous reviews of the XR3 scared me off with breakage problems. I contacted Stingray directly and found that they now have a lifetime warranty against breakage and free returns if it doesnt fix the problems. Easy 10minute install, and it works flawlessly. Boat planes out easily and lost no top end speed.

Stays on plane at lower speed, easy to install. Only 1 thing is that the coating on part started to come off after about a month

Absolutely love this! Great investment to add to your pontoon boat

Helps get on plane fast much needed in now rider

Inaccurate product description. DRILLING IS REQUIRED. Doesn’t even fit Evinrude 50hp outboard to begin with.

Did not fit the plate on my Evinrude 200. I retrofit it. It did nothing to reduce the speed my boat came up on plane.