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I have a brand new Exergy Fuel Pressure Regulator (Exergy System Saver) for sale. Exergy Performance improved Inlet Metering Valve is cost effective insurance for the failure prone CP4.2 pump. This is for Duramax truck owners looking for a little extra piece of mind. This goes on 2011-2016 LML owners.
Brabd New Exergy Fuel Pressure Regulator
