Henry - what was the purpose of adding this?
Hi Duane,
This unit has larger, less tortuous, oil pathways, therefore it flows more oil, faster, through the oil cooler, which keeps oil temps down, which keeps engine temps down. Max I've seen is 230 in heavy city traffic with 75 degrees ambient. Once underway again, it quickly dropped back to 220. That's with a single, six row JAGG oil cooler on the left down tube. The entire stock oil cooling system has been removed. In my opinion, it was ineffective, particularly for a larger than stock engine, due to the vortex created by the wake of the front wheel, and the cooler fins get obstructed with sand, dirt, mud, etc.
I had a HD chrome filter mount with a JAGG oil cooler adapter prior to this, but the oil pathways are much smaller and very tortuous in comparison to this one.
So, to directly answer your question, the purpose of this device is to keep my engine temperature down.