AFR/Lambda Sensor and Controller

Spartan 3 Lite v2 is a purebred Wideband Oxygen Controller for the Bosch LSU 4.9 sensor with no excess.  The advanced design, highest quality components, and extensive factory calibration means 0.01 Lambda accuracy without the need for any calibration. This sensor is plug-and-play with the OneGauge using the linear output feature.

Option to add a premium sensor bung. This bung is specifically designed to provide maximum protection for the Bosch LSU 4.9 and ADV sensor while minimizing exhaust restriction by only exposing the tip of the sensor to the exhaust stream. Bosch LSU sensors employ the venturi effect at the tip of the sensor to drive gas into the sensor measurement chamber, this bung does not interfere with the venturi effect. Made of stainless steel with a tapered end to help with welding.