o2 sensor

how much is a new o2 sensor, and is it hard to install???

which o2 sensor, there are 2, one on the downpipe and one behind the cat. converter. i think they're like $80 or something for the one on the downpipe and it takes about 5 minutes to put in.

no. the one behind the catalytic converter, i was installing new exhaust and i accidently stripped the f*ck out of it. while on the ride home it fell out and made my car sound like a ricey honda.

then i couldn't tell you how hard of an installation but the price should be similar i would think.