LT1-LT4 Modifications 1993-97 Gen II Small Block V8

EGR and AIR

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Old 02-12-2007, 10:02 AM
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Default EGR and AIR

i see all you guys talking about getting rid of it..what does it do and whats teh bennifit of getting rid of it? and what do i need to do to get rid of it..thanks
Old 02-12-2007, 10:17 AM
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does a bunch of emissions crap and clutters up your engine bay. the only benefit to removing that crap is a cleaner engine bay. you probably wont pass emissions without those things. if you have taken them off along with your cat like me your cars exhaust smell is going to be intense so don't leave it on in your garage without extremely good ventilation.

when you take them off you wilk need the egr blockoff plates and some type of plug for the heeaders. i used a 1 3/4 drain plug i think to plug my as&m headers.
Old 02-12-2007, 10:19 AM
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They are both for emisions control. If you have emissions testing in your area, you will want to keep them both operable. The main benifit to removing them is it cleans uo the engine bay and makes the car a little easier to work on. You won't see a performance advantage. Some people report losing a couple of mpg after removal of the egr.
Old 02-12-2007, 10:29 AM
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alrite...so when i go to buy lt headers..ifi wana keep my emmisions get teh headers with emissions on them im assuming
Old 02-12-2007, 11:02 AM
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Originally Posted by Lt1CamaroSS
alrite...so when i go to buy lt headers..ifi wana keep my emmisions get teh headers with emissions on them im assuming

Yes, just get headers with the emission hook ups. I'm pretty sure you will have to run shorties or mid lengths and keep the cat's in the original location in order to stay legal. Someone will correct me if I am wrong.
Old 02-12-2007, 12:57 PM
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im gonna get rid of the cat..it will b hard to get my car inspected but im sure there is a way to get around it...
Old 02-12-2007, 02:58 PM
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Originally Posted by Lt1CamaroSS
im gonna get rid of the cat..it will b hard to get my car inspected but im sure there is a way to get around it...

welcome to the world of toxic fumes.
Old 02-12-2007, 03:03 PM
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If you guys have looked at a LT4 real close, you will notice that it doesn't have EGR from the Factory. The EGR helps take the Cylinder temp. down while it is running on the LT1.
Old 02-12-2007, 03:44 PM
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Originally Posted by Razor_Blade
Yes, just get headers with the emission hook ups. I'm pretty sure you will have to run shorties or mid lengths and keep the cat's in the original location in order to stay legal. Someone will correct me if I am wrong.
True. But no state except California gives a ****.



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