A common issue with all M57 engines is the mixing of coolant and oil in the cooler plate seals. This plate fixes that by replacing the cooler and allowing for a fully separate system to be in its place, making for a much more reliable and effective cooling system.
 
choice of black or silver
 
Kits includes: 
Billet cooler plate
AN fittings push lock or PTFE/200 series fittings 
Fasteners