NTK - Direct Fit Oxygen Sensor - Downstream(B1S2) - AMU/AWP - TT Mk1

NTK is the world's largest supplier and manufacturer of OEM oxygen sensors. Oxygen sensors play a critical role as part of the vehicle's on-board diagnostic system in maintaining optimal engine performance, maximizing fuel efficiency and reducing harmful emissions. Providing constant closed loop feedback to the ECU, oxygen sensors help to control the air-fuel ratio while alerting OBDII systems of possible problems with fuel delivery or catalytic converter efficiency. A ceramics company at our core, NTK uses state-of-the art technology enabling control of the ceramic element used in our oxygen sensors from raw material to finished product. Trust The Sensor Specialist for full-line market support and OE application technology. 

Features and Benefits
ADVANCED CERAMIC SENSOR ELEMENT: 3-stage contaminant-resistant plasma jet and deposit trap overcoat protects against element poisoning

For Audi TT Mk1 225hp with AMU engine code from chassis # 8N-1-034-001 fits Downstream(B1S2).

For Audi TT Mk1 180hp with AWP engine code fits Downstream(B1S2).