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Improved Engine Performance - Ensures optimal fuel mixture and ignition timing
Fuel pressure regulator replacement requires proper tools
RWF-421-06-08BK
Engine misfires or stumbling
22127 Genuine Subaru Air Fuel Ratio Sensor 22641-AA391 EGO274 Improved Engine Performance - EnsuresGenuine Subaru Air Fuel Ratio Sensor 22641 AA391 Optimize engine performance and fuel efficiency with the Genuine Subaru Air Fuel Ratio Sensor 22641 AA391 (SKU 22 127). This premium OEM wideband oxygen sensor is engineered by Subaru to precisely monitor the air fuel mixture in your engine, enabling the ECU to maintain optimal combustion, reduce emissions, and maximize fuel economy for Subaru applications. CLICK HERE TO CHECK IF THIS FITS YOUR VEHICLE.
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