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Your cart is empty.The StingRay XR4, Senior Hydrofoil is designed to provide maximum lift, blast boats out of the hole quicker than ever before, and keep boats on plane at lower speeds – leading to significant fuel savings! Porpoising, chinewalking, cavitation, and ventilation are reduced or eliminated – stabilizing the boat and providing a safer and more comfortable ride. For boats pulling tubers, skiers, or wakeboarders the StingRay XR4, Senior Hydrofoil helps pull them up quicker, smooths out the wake for more enjoyable towing, and increases driver visibility by getting the bow of the boat down sooner. Heavy runabouts and ocean-going center-consoles can benefit from the maximum lift provided by the StingRay XR4, Senior Hydrofoil. The downturned wings also pack water tightly around the prop, making this an ideal solution for boats experiencing cavitation problems – a common issue found on pontoon and tritoon boats. The next-gen graphics package provides the most advanced graphics in the industry while complementing the styling found on new outboard engines. The 2-Bolt Installation method is the industry’s most secure and easiest installation giving you confidence and peace of mind while on the water – guaranteed to never come off your engine! Engineered with the very latest in hydrofoil technology, the StingRay XR4, Senior Hydrofoil provides top-notch performance enhancement, next-gen styling, and pays for itself in fuel savings – making this one of the best performance accessories you can add to your boat!
E. Boland
Reviewed in the United States on July 3, 2024
I am impressed. The 210 does not have a great ride. You need to run trim tabs at min 3/4 down to stop tendency to porpoise. I still need the trim tabs but this thing smoothed the ride out noticeably. Much less vertical movement and more cutting though the water. It feels more like a 23' boat instead of 21'. I'm very happy with it. It also improved time to plane. I did not buy it on Amazon (less money elsewhere) but figured a review here would see more eyes.
StephenM Cain
Reviewed in the United States on April 30, 2024
Made my pontoon get more mileage and seems more stable.
Stein65
Reviewed in the United States on September 28, 2023
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
Customer
Reviewed in the United States on September 26, 2023
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.
mike wallschlaeger
Reviewed in the United States on August 27, 2023
Easy to install. Boat hops up on top of the water and stays there at lower speeds. Easier to see over the bow.
Customer
Reviewed in the United States on August 25, 2023
Absolutely love this! Great investment to add to your pontoon boat
Angie Barrett
Reviewed in the United States on November 26, 2023
Helps get on plane fast much needed in now rider
Lawdawg
Reviewed in the United States on October 5, 2023
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.
Val H.
Reviewed in Canada on August 5, 2022
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.
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