The Nitemare Performance “Pro series remote oil filter housing” is a state of the art unit made from “BILLET ALUMINUM”. It features ½ NPT in and outlets and a ½ NPT fitting on top of the housing, for an oil temperature gauge sensor. The underside of the housing, where the filter attaches, has a deep oil grove cut into the housing, right over where the filtration holes are on the oil filter, to provide superior unrestricted oil flow. The housing is also clear hard anodized. For more detailed images of this product CLICK HERE.