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NGK 5‑wire wideband air‑fuel ratio sensor for Audi S6 (2007) applications is a direct-fit unit that provides a linear air–fuel ratio signal so the ECU can continually refine fuel delivery for optimal combustion and emissions. Built with NTK's sensor expertise, it uses an advanced ceramic element with a 3‑stage contaminant‑resistant overcoat to protect against element poisoning and support longer service life.
NGK Audi S6 2007 Direct Fit 5-Wire Wideband A/F Sensor
