Living in Arizona I quickly realized I needed to cool down my oil temps on my Dyna. Especially running the screamin eagle 110 motor. Looked around and ended up going with UltraCool because of the dual fans and it just looked better than any other cooler that’s out there. Mounted it on my bike in about an hour and also used their reusable oil filter. Took a ride out to California and had to stop in needles where it was 110 degrees. Bike was idling in that heat and the cooler handled it with no problem. Harleys Engine Idle Temperature Management System is installed on my bike and it didn’t even kick on while idling in those temps. UltraCool has a hell of a product and you’ll never get the run around when you call them to ask questions about their products. I would definitely recommend their cooler to anyone that needs one