It just spins onto the regular filter location then the OUT on that goes to the IN on the new filter inlet and the IN on the regular filter location goes to the OUT on the new filter inlet
Thread sealant on the fittings into the aluminum filter units as shown is a must but not on the AN fittings (blue to black) those are just tightened up preferably using an AN wrench if possible or adjustable works but will scratch the fittings
Also a different filter is needed for this as the OEM threads on the engine block housing side are different than the new filter location
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