[SUPERIOR PERFORMANCE] - Every Bosch Oxygen Sensor benefits from the technological and manufacturing experience gained from decades of production since the first Oxygen Sensor was invented in the late 1960's, ensuring long-lasting, superior performance [FACTORY TESTED] - Each sensor meets Bosch's rigorous standards for quality and performance and undergoes a fully functional quality test before leaving the factory to ensure operation within design specifications [STAINLESS STEEL BODY] - Stainless steel body is totally submersible and sealed tight to protect against damage from exhaust emissions — ensuring longer sensor service life [FAST ACTING HEATER] - Fast-acting heater optimizes sensor operation on Planar and 3, 4, and 5 wire Thimble type sensors allowing the oxygen sensor to reach its operating temperature quicker – within seconds – for optimum performance [READY TO INSTALL] - True direct-fit OE type connectors and harnesses, along with gaskets or crush washers as necessary for installation, make installation simple and hassle-free