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EJ257 (STI MY04-07)
Upgraded valve springs are essential for controlling valve movement with more aggressive cam profiles
A faulty AVCS cam sprocket will usually result in a CEL and may cause engine performance issues
Specify the required ramp angle set (ramps are also available separately): 45/20deg (1
Manufacturer Part Nos: 11044AA483
Front Oxygen Sensor WRX MY09-10 Gasket EJ257 (STI MY04-07)This 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.: 22641AA420 NOTE: OEM (Original
US$ 274500.00
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