Multiple BMW Fitments Oxygen Sensor by NGK NGK ignition coils are manufactured to OE standards for the highest durability and operational performance, so they can be installed with OE confidence. NGK coil designs are developed and proven tough in their ISO 17025 accredited test lab at extreme conditions that are far beyond any operational environment that a vehicle would experience. Features High-Quality Construction Benefits Convenient Replacement for OE Parts Applications 2001-2002 BMW Z3 2003-2016 BMW Z4 2007-2012 BMW 335i What’s In The Box? 1 – Oxygen Sensor Warranty NGK’s Limited Manufacturer Warranty