Hey guys,

I couldn't get the 02 sensors out of my stock cats, so i wanted to plug up that o2 sensor hole on my test pipes until I can get them out(car is super loud). Does anyone know the bolt size/thread pitch? I read somewhere that it was m18x1.50, but could only find this info off one thread. Thanks

Steve

 

also, would I be able to find these bolts at home depot or lowes? I called oreilly and autozone, and they dont carry these. Or should I try mcfaddendale?

 

you need those o2 sensors i would highly recommend you take the cats to a auto shop and pay them a couple dollars to get the sensors out.

did you try getting them out while the cats were still bolted to the car, and did you purchase a 02 sensor socket