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Boundary Oil Pump W/Billet Gears for 1991.5-2000 Miata
Price: $339.00
Boundary Oil Pump W/Billet Gears for 1991.5-2000 Miata
The Boundary BP oil pump starts with a fully torn down and inspected housing. This housing is then assembled with our billet oil pump gear and sealed.
Boundary HIGH FLOW Oil Pump W/Billet Gears for 1991.5-2005 Miata
Price: $439.00
Boundary HIGH FLOW Oil Pump W/Billet Gears for 1991.5-2005 Miata
Stage II pumps increase the overall flow by machining a deeper pocket into the oil pump and fitting larger gears in this pocket. This increases the strength of the pump, increases mid-range oil pressure, and increases the strength of the oil pump gears.
Boundary Billet High Flow Anti-Cavitation Backplate
Price: $199.00
Boundary Billet High Flow Anti-Cavitation Backplate
Billet oil pump back plates 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.

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