Hi, This catalytic converter will not include the oxygen sensor. It is sold separately.

O2 is not included

Hi Nolan, thank you for reaching out. Yes, it will. All hardware shown in the photos is included. You can use the link below to order the part while it's still on sale. Happy shopping! https://www.carparts.com/catalytic-converter/evan-fischer/repp960302?can=cpab2020

Hi Alex, I'm glad to assist you. No, this is a direct fit bolt-on type of part for the 2008 Toyota Corolla, all submodels 4 cylinder engine. Click the link below to order today and grab our discounted price offer before the promo sale ends. This also comes with a 30-day post-purchase price match guarantee. I hope this helps. Happy shopping. https://www.carparts.com/catalytic-converter/evan-fischer/repp960302?can=CPJE1043

It fit right into place on mine BUT. I did need to elongate the holes in the end bracket to attach it to the exhaust header. The ones on this were far to narrow. But some time with a rasp fixed that easily. It was a great fit besides that. Might want to get an o2 sensor at the same time if you buys this. The old ones tend to weld themselves in place after a decade or so. They are cheep. Just do it haha.

The only cut I made was at the muffler. I used my existing muffler. Other than that, it fits perfectly.

I did not have to cut the pipe for my 2003 Corolla S.

No cut needed

Hi Johnny, I'm pleased to assist you. Bryan and David gave very informative answers to your questions. You will need 1 downstream oxygen sensor for this part. Click on the link below to order at 43% off the regular price today while supplies last. I hope this is helpful. Enjoy shopping at CarParts.com! https://www.carparts.com/catalytic-converter/evan-fischer/repp960302?can=CPGG4850_CSQA_20220729

I had the one piece unit installed by my mechanic. This item cost about 700 dollars LESS than a similar unit I had had installed on a 2003 Pontiac Vibe a year earlier (same car as the Matrix, mechanically). I think the clamp likely attaches the rear of this unit to the rear part of the exhaust including the muffler. No new O2 sensors where required. A year and 15 or so thousand miles later I am happy as could be. The 46 state endorsement/legality is what made this item special for me. A pro can not/will not install a non approved exhaust part like this, per federal and state laws.

This is a one piece item, that uses the existing downpipe and muffler. Clamps are to replace the old ones that clamp this cat and resonator system to your muffler. Also comes with 2 gaskets. This will fit your current O2 sensor but it you don't have one you will need a downstream sensor. On a 04 corolla installation took me roughly 1.30 - 2 from start to finish. This is to replace your cat/ resonator as a bolt on option. Othwise if your cats bad a shop would need to cut and weld a universal cat to replace your bad one. Assuming that is the issue. Idk

Someone had cut the bolt up connector off so I needed the clamp. I used the original 02 sensor over

Hi Patricia, I'm pleased to assist you. We need more information. Is the reim of your vehicle Base or GT? Do you have an AWD or FWD? I suggest calling our Sales Team at 1-866-529-0412 to help you find the right part. Thank you for reaching out. Have a wonderful day.

So I have a 2007 Corolla and it's been having that engine light due to the downstream O2 sensor it still has an engine light but sounds great with this exhaust kit. The sensor issue has been very annoying I replaced it and even try to trick it with a bolt but not hun works. So for mine yes it did have a engine light

You have 2 oxygen sensors, one near the engine (this one is on the exhaust by the fire wall—you don’t remove it to replace this item) and then one that goes after the catalytic converter (big round part). This should bolt up easy to the existing exhaust near the motor and to the back exhaust pipe.

If it’s in the pipe it’s downstream if it’s in the converter attached to the engine block it’s upstream