1 Year Unlimited Mileage Quality Guarantee Before buying, check the “Select Your Vehicle” check (Make, model, year, engine, Note,The engine and Note in particular) at the top of the link to see if your car can be used. 2PCS; Upstream + Downstream Fit 2016-2018 BMW 340i 3.0L; Fit 2017-2019 BMW 340i GT xDrive 3.0L; Fit 2016-2018 BMW 340i xDrive 3.0L; Fit 2017-2020 BMW 440i 3.0L; Fit 2017-2020 BMW 440i Gran Coupe 3.0L; Fit 2017-2020 BMW 440i xDrive 3.0L; Fit 2017-2020 BMW 440i xDrive Gran Coupe 3.0L; Fit 2017-2020 BMW 540i 3.0L; Fit 2017-2020 BMW 540i xDrive 3.0L; Fit 2018-2019 BMW 640i xDrive Gran Turismo 3.0L; Fit 2016-2020 BMW 740i 3.0L; Fit 2017-2020 BMW740i xDrive 3.0L; Fit 2017-2021 BMW M240i 3.0L; Fit 2017-2020 BMW M240i xDrive 3.0L; Fit 2018-2019 BMW X3 3.0L;