Installing Prochamber tomarrow have ?

demented22 · Apr 30, 2012

Couple quick questions. What size are the nuts that hold the mid pipe to the stock manifolds? Only asking because I have to drive the car to where I am changing it at, and it's going to be pretty warm under there. Also which O2's do the mil eliminators get connected to? I have never ran these before. Thanks a ton!

CQD24 · Apr 30, 2012

Should be 15mm, and I believe the mils plug into the rear O2 sensors

demented22 · Apr 30, 2012

Thank you

AZmustang98 · Apr 30, 2012

Mine was 18mm....

Tools I used: 1/2 inch drive ratchet or breaker bar, 12 inch extention, U-joint, 18 mm socket. The rears are like 9/16 or something.

demented22 · Apr 30, 2012

Thanks AZ, I thought I needed some long extentions. I wanted to get a game plan due to my situation. I will have both ready!

03_TrueBlue_GT · Apr 30, 2012

Be sure to have a foot extension and a swivel! Its a PITA if you have never done it before but once you do it few times you can get it out fast. I got my midpipe out in 30 mins when I swapped it out for inspection...

demented22 · May 1, 2012

I have changed a few on fox bodies, and one about two years ago on an 02 gt. It has just been awhile. I will be getting good at it due to ouyr emissions laws also.

SteedaGT9150 · May 1, 2012

The passenger side is the biggest pain in the ass, everything else is pretty easy. Don't forget about the passenger side exhaust gasket either...

sneaky98gt · May 1, 2012

It really is easy, especially after you've done it once. My first time, it took me 3 hours, from driving the car in the shop to backing it out, to swap my midpipe. And that was by myself, on my back. I can now do it by myself in less than an hour pretty easily.

You do need to get a gasket for the passenger side header-to-midpipe connection. Even if you think you don't, spend $4 and go ahead and replace it.

The only thing even remotely hard to do is the passenger side header bolts. But once you know how, they're easy, too. It goes: ratchet > extension > swivel > extension > socket. I can't remember what lengths or if a shallow or deep socket work better, but it really is pretty easy.

Oh, and unless you want to scare the poop out of yourself when unbolting those bolts, disconnect the battery. Touching the terminals on the starter will get ya a little excited if you're not expecting it.

demented22 · May 1, 2012

Well unfortunatley, I didn't read the last two post till now and I forgot about the gasket. I have the stock pipe down and o2 sensors swapped over. I have had the prochamber since 04 and managed to loose all the nuts ofr the connections so I need to get those tomarrow as well. Should I go to ford dealer for the gasket or local auto parts ok? The only one I found local in stock is a walker brand and it's $13. Figures the felpro is 4.99 and out of stock. Biggest problem I had was getting the front o2 harness disconnected, and well the hot ass pipes. I was impatient and wouldn't let it cool down. All should be well and back together wed night. Btw she is LOUD with the midpipe dropped. I just had to once!

03_TrueBlue_GT · May 1, 2012

I went to a local auto store to get the gasket and it was Autostoned. I only paid about 3 or 4 bucks for it. Yeah I was impatient too and got a good burn on my arm bc of that... Next time Im taking my time and yes it is loud with just headers...

demented22 · May 2, 2012

Got her on today, tried to make a vid but my phone recorded at a low volume and it said too large to email. May try my daughters I phone. Sound is awesome! Def runs better also!

AZmustang98 · May 2, 2012

Video or it didnt happen

demented22 · May 3, 2012

Trying bud! My phone won't let me email the one I took with it. Should have one Saturday.

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