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The NGK five‑wire wideband air‑fuel sensor for Audi A8 Quattro (2008–2009) gives a linear A/F signal that helps the ECU precisely control fuel mixture for efficient combustion, better fuel economy and lower emissions. NTK ceramic technology and a 3‑stage contaminant‑resistant plasma‑jet element with a deposit‑trap overcoat protect against element poisoning, speed heat‑up and support OE-style performance and fitment.
NGK Audi A8 Quattro 2009-2008 Direct Fit 5-Wire Wideband A/F Sensor
