2001 Audi A4 2-Pc Oxygen Sensor Upstream 4-Pin A-Premium APOS0397

A-Premium Aftermarket Oxygen Sensor: Built for Great Performance
A-Premium Oxygen Sensor is designed to deliver exceptional performance for your vehicle. Backed by our 3-Year unlimited mileage warranty, tough working conditions are no longer a concern.

• Installation Position: Upstream
• 2-PC A-Premium Oxygen Sensor
• Created to achieve superior reliability criteria.
• Intensively analyzed to promise enduring and reliable operation.
• Developed with innovative materials to offer robust resistance to wear and corrosion.
• Developed to snugly fit your vehicle without the hassle of modifications.

Instant Adjustment. By promptly recognizing and reacting to variations in exhaust gases, the oxygen sensor ensures immediate modification of fuel injection to maintain reliable engine functioning.
High-Precision Sensor Design. A-Premium employs state-of-the-art technology in their Oxygen Sensors to capture precise oxygen levels, ensuring an ideal balance of fuel and air for the engine's optimal performance.