CSF Universal Dual-Pass Oil Cooler - M22 x 1.5 Connections 22x4.75x2.16The unique design of CSF's oil cooler line has distinct advantages over conventional style oil coolers (plate type stacked oil coolers). The oil coolers can be placed in tighter spaces or different areas of the vehicle that don't have much vertical surface area. Longer rectangular sizes can also help with avoiding the stacking of too many coolers which may cause airflow issues to other components in the cooling system. Inlet outlet port placement is