I have a 2010 Street Bob, with the Oil Bud oil cooler. Although more expensive, I'm getting very good results with it. I did a lot of research before commiting to the investment (I also have one on my 08 Softail Deluxe). Although I don't have a temp gauge on my Street Bob, I have two temp data points on my Deluxe, one on the oil tank, and a sensor on the oil filter adapter sending data to a Dakota Digital gauge on the handle bar. I'm consistently getting 30 degree reductions on the Softail. On my softail, in heavy, hot-day commuting in metro Atlanta, my oil tank temp has been as high as 285, and with moderate traffic and freeway speeds, the oil tank temps were consistently in the mid 250's. Those numbers were with a totally stock setup except for open baffles in my American Custom Exhaust mufflers. Less backpressure will increase engine heat. There are many solutions that can get effective results. Everybody, like myself, has some type of experience, and perspective. I respect everyone's views on these things. My solution on my softail has worked well for me and I am in the process of implementing it on my Street Bob. 1) K&N intake filter, 2) American Custom Exhaust with no baffles (wow, great sound!), 3) TFI performance tuner set at 3344. This works for me. Just my perspective, among 100's or thousands that are just as good, if not better. Hope this helps.