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WRX 4DR MY11-21
STI EJ207 MY03-07
: XKSU23531-2A
A double bridged forging design and slipper skirt ensures incredible rigidity while keeping mass to a minimum making it superior for performance and reliability under extreme conditions
full-counterweight design found in previous EJ25s
Front Oxygen Sensor GRB Caliper Overhaul Kit WRX 4DR MY11-21This sensor measures the oxygen content in the exhaust system pre catalyst. An oxygen sensor (or AF sensor) can establish the air fuel ratio by measuring the excess oxygen left over from the combustion process. The front air fuel (AF) sensor is used by the ECU for fuel calculations during closed loop fueling. A faulty sensor can result in poor engine operation or stalling and may set a CEL. Manufacturer Part No.: 22641AA510 NOTE: OEM (Original
US$ 20.80
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