Fit 2011-2013 Toyota Corolla 1.8L; Fit 2011-2013 Toyota Matrix 1.8L; 2pcs; 1x Upstream+ 1x Downstream One Year 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. The higherbro Oxygen O2 Sensor is designed for 2011-2013 Toyota Corolla and Matrix models with a 1.8L engine. This set includes 2pcs, one upstream and one downstream sensor, made of high-quality stainless steel and ceramic materials. The sensor has a maximum supply voltage of 5 volts of direct current and a temperature rating of up to 1200 degrees Fahrenheit. It is an electronic sensor that is specifically designed for use as an oxygen sensor. The product is modern in style and comes with a one-year quality guarantee. Before purchasing, please verify that your vehicle is compatible by checking the 'Select Your Vehicle' option at the top of the product link, taking into account the make, model, year, engine, and any notes provided.