Exhaust System From headers to exhaust tips

PUtting Headers on Right NOW

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Old Apr 26, 2008 | 01:33 PM
  #1  
yungin' w/a z28's Avatar
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PUtting Headers on Right NOW

Just checking if there are some people standing by to offer some assistance if the need be.
Old Apr 26, 2008 | 03:17 PM
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Originally Posted by yungin' w/a z28
Just checking if there are some people standing by to offer some assistance if the need be.
Some of us will be around
Old Apr 26, 2008 | 04:45 PM
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Thanks man. No problems yet.
Old Apr 28, 2008 | 07:59 AM
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Finally got them on!

Finished it up last night. My step-dad and I worked on it from 2 - 6 pm saturday and 2 - 8 sunday. It took awhile but we managed.

We ran into relatively few problems. It was pretty smooth. Other than a couple of tricky bolt in tight places.

Basically this is what happened:

* Removed all exhaust tubing, Y pipe, and muffler
* Removed the starter
* Took out the oil pan and filter (gasket needed changed)
* Took out the bolt to the motor mounts (did not replace the mounts)
* Loosened the bar that connects the struts (don't know the name of the bar)
* Took out the transmission dip-stick tube (drained all trans fluid )
* Replaced the oil pan gasket and put the oil pan back on
Day 2

* Removed manifolds
* Removed all plugs
* Dropped the drivers side header in from top and put in screws
* Lifted the engine a touch and put in the passenger header from the bottom and put in bolts (we removed the tappet (sp) cover. it was VERY clean in there. We were both impressed)
* Put in new plugs (Bosch Platinum Series)
* Then we basically put everything back together

The only problem I have right now is the O2 sensors. They weren't long enough. We got some wire and connectors with the header installation kit but we didn't hook them up. I wasn't sure if it was the right thing to do or not.

I planned on running no Cats and deleting the rear O2 code from the computer when I got my MadZ28tune. But the guy at the exhaust shop got me paranoid because he said that it is possible to ruin the life of your engine by deleting these codes because it may make it run to lean or too rich.

Could someone please explain this to me. Because I have no idea.
Old Apr 28, 2008 | 08:05 AM
  #5  
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Originally Posted by yungin' w/a z28
The only problem I have right now is the O2 sensors. They weren't long enough. We got some wire and connectors with the header installation kit but we didn't hook them up. I wasn't sure if it was the right thing to do or not.

I planned on running no Cats and deleting the rear O2 code from the computer when I got my MadZ28tune. But the guy at the exhaust shop got me paranoid because he said that it is possible to ruin the life of your engine by deleting these codes because it may make it run to lean or too rich.

Could someone please explain this to me. Because I have no idea.
For your first issue, you can buy 02 sensor harness extensions. If you get the 12" extensions, those should be plenty long. The header kit comes with wiring and crimp connectors so you can cut/splice/lengthen you factory harness. I would not go this route, I would anti up and pay the 25-30 bucks for the actual extension harnesses. You want the flat 4-pin style.

As for your second issue, the exhaust shop guy I'm sorry to say doesn't know what he is talking about in that area. The rear 02 sensors only monitor the catalytic converters, period. They do not have any role in the actual fuel management calculations, that is what the front 02 sensors are for. By removing the rear 02 sensors and cats, and having the codes tuned out of your PCM, will do absolutely no damage to your car.
Old Apr 28, 2008 | 08:17 AM
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Originally Posted by 2000GTP
For your first issue, you can buy 02 sensor harness extensions. If you get the 12" extensions, those should be plenty long. The header kit comes with wiring and crimp connectors so you can cut/splice/lengthen you factory harness. I would not go this route, I would anti up and pay the 25-30 bucks for the actual extension harnesses. You want the flat 4-pin style.

As for your second issue, the exhaust shop guy I'm sorry to say doesn't know what he is talking about in that area. The rear 02 sensors only monitor the catalytic converters, period. They do not have any role in the actual fuel management calculations, that is what the front 02 sensors are for. By removing the rear 02 sensors and cats, and having the codes tuned out of your PCM, will do absolutely no damage to your car.
I'll get the 12" extensions then. Where can I find them?

Also, will it be ok to drive it without the rear O2 for awhile? Until I can get them tuned out.
Old Apr 28, 2008 | 09:10 AM
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Ebay has the extensions for pretty cheap, just make sure you get the 4-pin flat style connector. Also, Thunder Racing, Jegs, or Summit have them. You'll will be fine driving the car with the rear 02 sensor codes active. As I mentioned, they do not affect the fuel management calculations done by the PCM.
Old Apr 28, 2008 | 12:33 PM
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Congrats on Putting the Headers in! I would like to put some LTs in my Z28 down the road, But I would deff. need help with that one. lol I'm not all that Mechanically/engine smart...But I really wanna learn! lol.
Old Apr 28, 2008 | 01:16 PM
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Originally Posted by Red93Camaro
Congrats on Putting the Headers in! I would like to put some LTs in my Z28 down the road, But I would deff. need help with that one. lol I'm not all that Mechanically/engine smart...But I really wanna learn! lol.
Keep reading and digging through old posts. Plenty of good info on here that can help you properly do the install. There have been several people who are not 100% mechanically inclined, but did their research, and are able to pull of some complex installs/repairs.
Old Apr 28, 2008 | 03:03 PM
  #10  
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Originally Posted by Red93Camaro
Congrats on Putting the Headers in! I would like to put some LTs in my Z28 down the road, But I would deff. need help with that one. lol I'm not all that Mechanically/engine smart...But I really wanna learn! lol.
Originally Posted by 2000GTP
Keep reading and digging through old posts. Plenty of good info on here that can help you properly do the install. There have been several people who are not 100% mechanically inclined, but did their research, and are able to pull of some complex installs/repairs.
I'm one of them. I didn't know anything hardly before I joined the site.

Plus the friendly tips and advice from people like 2000GTP helps out a lot.
Old Apr 28, 2008 | 03:11 PM
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Do you have any pictures of the process?
Old Apr 28, 2008 | 03:34 PM
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Originally Posted by Red93Camaro
Do you have any pictures of the process?
Brent Franker, one of the forum moderators, has a pretty good writeup with some pictures. Also, try doing a "search" as there are other writeups and plenty of posts going over the "ins and outs" of the install. http://www.bfranker.badz28.com/fbody/exhaustday.htm
Old Apr 28, 2008 | 03:41 PM
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Wow 2000GTP thanks alot! This is gonna help me alot when i time comes, I added this in to my bookmarks, Is this also the guy who has the Blue Z28 emblems as well you were talking about?
Old Apr 28, 2008 | 05:26 PM
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Originally Posted by Red93Camaro
Wow 2000GTP thanks alot! This is gonna help me alot when i time comes, I added this in to my bookmarks, Is this also the guy who has the Blue Z28 emblems as well you were talking about?
Yes, he does all the custom vinyl. He did a couple things for me a couple years ago, he does very good work and is spoken highly of on here.
Old Apr 28, 2008 | 05:29 PM
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Alrighty I'll let him know I'm interested!
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