A-Premium O2 Oxygen Sensor Compatible with Subaru Outback 2013-2019, Forester 2013-2020, Legacy 2013-2019, Impreza 2012-2020, XV Crosstrek 2013-2015, 2.0L 2.5L, Upstream & Downstream, 2-PC Set

Excellent

About 1/3 the price of OEM and have been working fine for about 10k miles

Did not work at all.

That's the answer to the question most people ask when they see something like this at a significantly lower price than OEM. I wasn't 100% sure it was the sensors that needed replacing or even which sensor needed replacing. Ordered this set to cover some bases, they came a day earlier than expected, simple enough to change, and a very good price. They come with a little anti-seize on the threads and a built-in squash washer. When removing the original upstream sensor's wire, there was a zip tie type clip that holds the wire away from the exhaust, you'll need a new one or at least a zip tie to replace it. Four stars only because I have no idea how long these will last.

Response rate of circuit was so slow it faulted every engine start. Stick with Bosch of you can find one.

Bought this product ,after replaced it problem wasn’t solved cleaned original o2 sensors in soapy water,problem solved. Do not buy this product it doesn’t work.