355, i noticed under my car the cable was in bad shape, not smog related.I've always used the 13144 on my cars over the years, but it's good to confirm that it works the best.
Were you trying to get your car to pass smog? (I've got a lot of experience w/ dealings w/ those tests)
Also what cats did you use as replacement?
Searching for a new one, was curious about the various sensors being mentioned on forums/online retailer options.
its very good to know the sensors are not all created equal... the $40+ price as usual too good to be true? to be fair it "works"
but in terms of what it should be doing? not so much in my case it was & very noticeable and chose to stick with P/N 13144.
the CA recommended Magnaflow #332037