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nah not a noob question man. how would u learn if u dont ask?

there are variations on the design of o2 sensors. but in general most look like this:

post-40676-1201584883_thumb.jpg

they are located usually in the dump pipe. your should see it sticking out the top of the dump pipe.

it is the size of the THREAD that u have to worry about when fitting one, but most are universal fit, it is the wiring you have to watch for.

it is used to measure the AFR, then the ecu uses that info to make its adjustments.

but it is predominately used for cruising

Edited by r33cruiser

ah cool I found it, was thinking the guys took it off when they installed an after market muffler on my car.

It sounds nice but tis shit on fuel econ and performance, had a look today and it seems they used 2" - 2.25" piping :huh:

Edited by POLICE
ah cool I found it, was thinking the guys took it off when they installed an after market muffler on my car.

It sounds nice but tis shit on fuel econ and performance, had a look today and it seems they used 2" - 2.25" piping :banana:

Did you get a whole new exhaust sytem or just the catback? They wont change the dump/front and/or cat unless you ask them.

Stock dump/front pipe is 2.25" (I think, or 2.5", 2" is for NA's). (See below for pic on R33 GTST.)

o2_ciricled.jpg

ps. rofl @ your signature. What year did you leave?

nah I just had a muffler change, cause my friend told me about some of the horror stories ppl had with a cat/turbo back system installed

I measured the stock GTS-T piping and it's 60mm in diameter, the piping i had was 55mm, though not alot in it

they had to bend the pipe to fit it on which makes some part oval like and I dun think that's good for the exhaust

Oh and I left at 2000

Edited by POLICE

Hey Victor it's Ge hahaha I remember you and Tatfree (however you spell his name) and other guy Pui

you used to play handball with us near the L block right?

EDIT

oh no wrong person, you hang with that Jeremy guy right?

Edited by POLICE

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