I installed the RF-2 3.0 fan assisted oil cooler system on my 2015 road king about 500 miles ago along with the flo PSC4C oil filter.

Install was easy since I purchased the additional plug and play harness. Changed the oil at the same time to minimize the mess.

I live in florida and have notice a difference in how my bike runs. The bike feels like it runs stronger. This kit along with mid frame air deflectors is a must in the Florida heat. I will be putting Ultracool product on every Harley-Davidson I own from now on.
Extremely happy with these products. And I’ll be telling everyone that asks about it that I recommend it!!!