Hi Brett,
I dont know wether the
oil goes through the filter before going to the rest of the engine or after going to the rest of the engine but.............If the
oil goes to the filter last then the
oil comming from your remote mounted filter/cooler will hit the sump and mix with the hot oil already in the sump, so your remote oil sensor will have the incorrect temp..........................If the oil goes to the filter/cooler first then it will tell the just cooled oil temp but then the oil will start to heat up as soon as it gets to the engine parts, so you will get a temp reading but probably not indicative of the running oil temp in your motor. For example on a cold day your oil temp will read colder even though the oil in your engine might not be colder than any other day.
Of course, I could be wrong
and at the end of the day it only matters if you want an accurate reading. If you just want the gauge to work so it looks cool then remote mounting of sensor is fine.