After bolting on the oil filter housing, I used a breaker bar to take off the two oil plugs on each side to replace with oil fittings. The right sized allen socket and breaker bar gets these loose without any heat. This is done so I can have an oil source for my oil pressure gauge and one for my turbo. One of these is post filter for the turbo. I also installed a new oil pressure sending unit. I used high temp thread sealant on everything instead of yellow teflon tape.