Test Pipes

[r33th4x0r]

I was looking at getting a test pipe for my civic, and im pretty sure i need a 2 1/4 inch pipe, right? And also, it says i can get them with or without an O2 sensor bung... im think my car has an O2 sensor hooked up to the cat, so i guess i better get the one with the O2 bung on it to keep my check engine light from coming on?

[94civic]

yeah you need a 2.25" you can also use a 2.5" if you want and the part about not making you CEL come on won't happen it will more than likely come on with a test pipe. if the light does come on then you have to get a o2 sensor simulator.

[B16EJ1]

OBX makes test pipes with an extra o2 bung.

[91civicDXdude]

uh huh huh huh uh huh huh huh

you said bung

uh huh huh huh

[r33th4x0r]

So i do get the one with an O2 sensor bung?

[97civiclx]

he said bung to hehehe

[B16EJ1]

Your car should be OBD1 and there shouldn't be an o2 sensor in your cat.

[civic1784]

you won't pass inspection running a test pipe

[B16EJ1]

That's why you keep your cat in your closet then when inspection/emission time come you take about 30 min to bolt it back in.

[SiRII]

don't get rid of your o2 sensor. i've heard that if you do, the computer doesn't read right and can cause problems down the road???