Roger Clark Motorsport 10mm Modified Oil PumpAt the heart of all Roger Clark Motorsport engines is the now world renowned RCMS Modified oil pump. This clever, effective modification has been designed to assist the Impreza with its oil supply and is now regarded as a must have modification with any Impreza engine build. Each pump is carefully checked, given a serial number and then modified to incorporate a different pressure relief valve ensuring greater reliability and peace of mind to your
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