I made an adaptor to go in place of the oem heat exchanger (which I found didn't work for crap) that has -8 fittings that feed an oil cooler and external oil filter. In place of the oil filter I have a spin on adaptor with -10 fittings that connects to an inline setrab oil to water heat exchanger. The oil goes through the heat exchanger, then the cooler, and then the filter. I have two sensors, one in the oil filter adaptor (the coolest location), and one in the pan (hottest location) in a bung I welded into it. I can switch between either sensor. I used an autometer gauge with 1/8 NPT sensors.