Anyone use/know about this heat-sink cooler? According to company literature, it was in the H-D Accessory catalog in '97 and later years until the contract with H-D ran out. A polished aluminum finned-piece that fits over the H-D brand oil filter (apparently only H-D branded filters). It kinda makes sense in that it uses fins like the engines do, to help cool the oil in the filter. Got me curious......