AUTOSAVER88 Catalytic Converter 3.5L Passenger Side for 2007-2017 Nissan Altima/Murano/Pathfinder/Quest & Infiniti JX35/QX60 - Direct-Fit High Flow Series (EPA Compliant) Review

It's been like this for 11 months and now my Infiniti says that both bank 1 and 2 are bad. We replaced one, but now we need to replace both. Is there a guarantee?

P0420 showed up on the scanner after 126,000 miles on an SUV. I had to replace the catalyst 1 bank. It's a converter between the firewall and the engine. I did the work myself on my porch. It's pretty easy once you know what you're doing. If not, just take your time and pay attention to what you're doing. I've been driving for a month now with no problems.

My 2014 Pathfinder had the check engine light on. The code assumed that the catalytic converter was performing less than it should have. This fits snugly on block 1 which is at the rear of the engine next to the firewall or on the left hand side when looking at the front of the engine where the belts are located. Fits well but screws are hard to reach. I used an impact wrench. if you can get one, it's pretty easy.

The cat looks good so far. However, the included hardware was smashed by the train. Two of the studs were the wrong size, I got an odd set of nuts and bolts and one of the spacers was a little too big. Luckily, my old gear turned out to be in good shape and I could reuse it. Most alarmingly, the bolt hole that attaches the coil to the motor (the fourth hole on the flange where the flex pipe connects) was about a half inch off of the correct alignment in my car. Everything else came and went…