[Vehicle Fitment]: "Upstream and Downstream; B1S1": Compatible with Audi A3 2017 L4 2.0L, A3 Quattro 2015-2017 L4 2.0L, S3 2015-2017 L4 2.0L, TT Quattro 2016-2018 L4 2.0L, TTS Quattro 2016-2018 L4 2.0L; Compatible with Volkswagen Atlas 2018-2021 L4 2.0L, Atlas Cross Sport 2020-2021 L4 2.0L, Golf R 2015-2018 L4 2.0L, GTI 2015-2018 L4 2.0L [Reference Number]: 250-241142, 250-25112, 250241142, 25025112 [Specification]: ① Wire Quantity: 4; ② Sensor Type: Heated; ③ Mounting Type: Threaded; ④ Connector Gender: Male; ⑤ Package Quantity: 1x Oxygen Sensor; ⑥ Packaging Type: Box [Quality Construction]: Manufactured from premium materials for a long lifespan; Quick and easy installation, requiring no special tools [Buy with Confidence]: A-Premium offers a one-year unlimited-mileage guarantee on our meticulously crafted O2 Oxygen Sensor. We offer a wide variety of automotive accessory categories, ensuring that you can hit the road with peace of mind