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The NGK 5-wire wideband air-fuel sensor for BMW 325Ci (2003–2006) supplies a linear AFR output that enables the ECU to determine exact mixture and continuously adjust fueling for efficient combustion and emissions control. Made by NTK, a leading OEM sensor and ceramics specialist, the sensor uses an advanced ceramic element with a three-stage contaminant-resistant plasma jet and deposit-trap overcoat to help prevent element poisoning.
NGK BMW 325Ci 2006-2003 Direct Fit 5-Wire Wideband A/F Sensor
