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NGK 5‑wire wideband air‑fuel ratio sensor for Audi RS4 (2007–2008) applications provides a direct-fit linear AFR signal so the ECU can continuously adjust fuel mixture for optimal combustion, efficiency and emissions control. The sensor is built with NTK's OEM-scale expertise and ceramics control, featuring an advanced ceramic sensing element protected by a 3-stage contaminant‑resistant plasma jet and deposit‑trap overcoat to resist contamination and extend service life.
NGK Audi RS4 2008-2007 Direct Fit 5-Wire Wideband A/F Sensor
