Onboard Wideband Bosch LSU 4.9 Sensor Kit for Nexus Series and Elite PRO Plug-in ECUs

The Haltech Onboard Wideband kit integrates a Bosch LSU 4.9 oxygen sensor directly with Nexus Series and Elite PRO Plug-in ECUs, eliminating the need for external wideband controllers. This complete solution provides accurate air-fuel ratio monitoring through the ECU's onboard wideband controller functionality. Designed for professional tuning applications, the kit includes everything required to add precision lambda sensing to compatible Haltech systems. The integrated approach reduces wiring complexity while delivering reliable AFR data for optimal calibration and engine management.