Our most versatile sandwich adapter kit offered and is designed to install on 90% of the passenger vehicles on the road today. This universal kit includes an 180°F thermostatic sandwich adapter with 3/8" NPT ports and fits oil filter landings from 2 3/4" up to 3 1/2" diameters this adapter provides external oil lines to allow the addition of an engine oil cooler. It installs between the stock engine oil filter landing and the oil filter. Stock filter is retained.