Wideband O2 Sensor only - Bosch LSU 4.2

The Haltech Wideband O2 Sensor utilises the proven Bosch LSU 4.2 element for accurate lambda measurement across a wide range of air-fuel ratios. This genuine replacement sensor maintains the precise data integrity essential for ECU tuning and engine management systems. The LSU 4.2 design offers reliable performance under demanding operating conditions, from street to track environments. Compatible with Haltech wideband controllers and suited to both petrol and E85 applications, this sensor ensures your engine management system receives the accurate feedback necessary for optimal calibration and safe engine operation.