Review on Maximize Cooling Efficiency with the Derale 16926 High Output Radiator Fan by Oso Mears

Overall the product worked as advertised. The quality of the product was good, the installation guide and accessories served their purpose. I installed this product on my Aluminum Rad 65 Mustang in less than an hour. However, the kicker came when the fan was switched on. The S-shaped fan blades sound like a siren. I could hear the fan noise over the noise of my engine in the car. Too much for me. I have returned the item.