So I have this header that friend gave me... they look like the Pilo Racing 2 piece header. I guess he bought this as a prototype or something b/c it was a while back according to him. The only problem is that the first o2 sensor is place at an angle where it hits the sway bar. He didn’t wanted the so I took them.

Here is a pic of the header from ebay only this one has the issue fixed… Its just like this one but the o2 sensor near the flex pipe hits the sway bar…



Now the question is. Can I relocate that sensor just a bit higher on the same area just so that I can avoid hitting the sway bar? Basically cut out the one there… cover the hole and make a new hole to make place for the o2 sensor… Would it affect the header or the cars performance?

And any idea how much that would cost to do at a muffler shop? I mean if i can get this one fixed i can save some money...

 

anyone?

 

Yeah you could move it anywhere as long as it is before the cat, and that there is one behind the cat. If the header is not on your car it should only cost like 25-30 buck to do.

 

Just plug it, and try to make it line up flush inside the pipe. Getting a bung added isn't too much money at a good muffler shop.

Matt

 

Matt,

i dont understand what u typed... could you explain a bit? you mean like put a plug to cover the open sensor hole... then add a new one?

thanks

 

so you get something that threads into it. But it should be long enough to be roughly flush on the inside, so that it doesn't stick into the flow path too much. You want the inside to be smooth, from the perspective of the flowing gasses.

If you put something that's too long in, just drive for a while, take it out, and you'll be able to see what part has been exposed. Just grind to lenght....

Matt

 

02 sensors are M18x1.5, you can get plugs at most parts stores.

 

I've never had success getting anything other than an 02 sensor or a spark plug to stay in a tapped hole a the exhaust manifold.

 

tack weld it once it's in....

Matt

 

yeah, i was thinking it would stay on... but then i tought i could weld it...

 

Keep in mind that it's not recommended to install a bung on the very bottom of the pipe (such that the tip of the O2 sensor is pointed upwards) due to the possibility of drips from condensation falling on it and damaging it. Mount it at a slight angle.

 

That's funny...my plugs and sensors have always siezed even with anti-sieze applied:impatient

 

Well, I got it done this morning at a local shop down here in Miami called Speedshop...
The charged me $60… Which sounds like a lot but it is Miami everything here is a lot...
Ill take a picture when I get home and post it... I think they did a good job....