Derale Performance 16833 Gray/Black High Output Dual Radiator Fan

When I first got the fans I was a little skeptical as the fans did not seemed as powerful as described with 3750 CFM, so i thought that like most fans the output was being exaggerated. I installed these to cool off a roughly 550 HP 454 BBC that had overheating problems with other fans, to my surprise these fans did more than enough to keep the engine cool. I went to the sand dunes and tried to overheat the engine like it did before, but as soon as the fans turned on the temperature dropped to less than 180 degrees. I am really satisfied with this product and by the way it probably does get the advertised 3750 CFM, you can feel the air being pulled to the engine bay standing in front of your vehicle.

Definitely keeps my 454 cool between 165-185 and it’s sounds like a jet which is no problem . Well worth the money $$💪🏾💪🏾

A great dual fan system for a really good price. Works perfect

So far so good the fan very well made and of great quality. The shipping was quick and after some modification (due to my application) It's working nicely. I'm waiting for the summer months to tell the whole story but I'm very optimistic. Overall it's a great fan so far and if recommend it.