Boundary Pumps Billet Back Plate Toyota Celica/Lotus Elise I4 2.0L High Flow Anti-Cavitation

Our Billet backplates use advanced CFD simulation and exacting 3D precision milling to create a blend of engineering and manufacturing that produces less leak by, less aeration, less cavitation, and more high RPM flow.

• The plate is cut from billet steel, 5 times as rigid as aluminum, reducing blow-by and air ingestion
• Plates feature our MartenWear surfaces for long life
• Increased volume and reduced foam increases engine bearing life
• Utilizes surface grinding to create the ultimate pump seal
• Includes high-pressure o-ring seal to eliminate leaks