The M20 oil cooler delete is a very common modification for street and track cars.  The oil cooler adds extra weight, complexity, and fluid to the system.  Although you would think the cooler is needed, there are plenty of studies on the internet shown that the oil cooler for the M20 motor is not needed.  This adapter goes in place of your oil cooler bracket.  This screws to the block and the other end screws right into your filter.