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Replacement AEM/FAE O2 Sensor
Compatible with Part #30-0300
- -Compatible with unleaded and leaded race fuels.
- -Replacement for 0300 with 0400 serial number
- -Improved durability compared to Bosch 4.9.
- -Faster response time.
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AEM Replacement Sensor Harness for Digital Wideband Gauge (30-4110)
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