100% Bosch made 14point7 branded LSU ADV Lambda Sensor. Compatible with Spartan 3 Lambda Controller and other controllers that use LSU ADV sensor (many other brands use the older LSU 4.2 or LSU 4.9 sensor so verify before purchase). The LSU 4.9 is a cost effective Wideband O2 sensor providing 0.01 Lambda accuracy, fast response, and rated life of 60,000 miles. 

• SPARTAN 3 CONTROLLER (or other controller designed for Bosch LSU ADV sensor) IS REQUIRED FOR USE
• Cannot be used to replace stock narrowband o2 sensor without using controller and narrowband simulate
  
• Cannot be used without a controller
  
• Cannot be used to replace LSU 4.2 or LSU 4.9 sensor
• Downstream sensor (pre-cat/post-turbo). This is not the pre-turbo version of this sensor
• This listing is a replacement for a failed sensor, not intended to be used in its own
  
• 3-month manufacturer's warranty