AEM FAE Wideband Uego Replacement O2 Oxygen Sensor LSU 4.9

no calibration required when used with 30-0300 X-Series Wideband Gauge
Compatible with Part #30-0300

Features:

• -Replacement for 0300 with 0400 serial number
• -Improved durability compared to Bosch 4.9.
• -Compatible with unleaded and leaded race fuels.
• -Faster response time.