EM Header Setup Question
Thread Starter
Instructor
Joined: Mar 2003
Posts: 176
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From: Holtsville NY
EM Header Setup Question
I ordered a set of Headers from EM in this last GP. My application is a 1992 LT1. My question is can the AIR system be removed and cats with no AIR provisions be installed without any bad effects to the car's performance? Also would i need to have the EPROM retuned, and would it still pass emissions? Thanks for any help.
Thread Starter
Instructor
Joined: Mar 2003
Posts: 176
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From: Holtsville NY
I'm sick of working around all the emissions crap on top of the manifolds and when I install the headers I was looking to free up one side. I figure I can't get rid of the EGR and still pass so I was hoping to ditch the AIR. Unless I have no idea what I'm talking about because I assumed one side of the manifolds had the AIR and one side had the EGR. Mostly my goals were to make as few holes in the headers as possible and to unclutter the engine bay a little. THanks for all the help
Instructor
Joined: Aug 2004
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Get rid of it. I disabled my EGR and removed the AIR tubes as well. Don't drill out the headers for the EGR/AIR tubes, and get EGR block off plates for the intake and you should be set. You then just have to program the computer to turn off the EGR codes. It is so much nicer not having all that crap getting in the way to work on the engine, and the car runs better than it ever has.
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Originally Posted by Diesel68
Get rid of it. I disabled my EGR and removed the AIR tubes as well. Don't drill out the headers for the EGR/AIR tubes, and get EGR block off plates for the intake and you should be set. You then just have to program the computer to turn off the EGR codes. It is so much nicer not having all that crap getting in the way to work on the engine, and the car runs better than it ever has.
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Safety Car
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From: Detroit's West Side MI
I need to get ahold of an EGR block off plate for mine. I added the headers and also removed the EGR and AIR systems. But I can't find a plate to block it off (the larger, diamond sized hole). Any suggestions?
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