I have both an oil cooler and Love Jug cooling fans on my 2010 103 EG Limited.
I ran quite a few miles during Florida’s hot summers with just an oil cooler, the Love Jugs weren’t installed until may be 2013. The Love Jug cooling fans really do the job of cooling the motor and making the ride a lot more comfortable for me while stopped at lights or in stop and go traffic. If I had to pick which one, or which one I was going to install first do to a limited budget, I’d pick to install the Love Jug cooling fans hands down the best mod I did to my bike. – jamesroadking, H-D Forum