C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Another Header Question?

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Old Feb 27, 2003 | 09:13 PM
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Default Another Header Question?

I will be installing some hooker headers soon and i was wanting to go with the 2151's. My question is since there are no provisions for the EGR will removing the EGR and installing the block off kit cause any problems with performance and will it cause the check engine light to come on? Or will I be better off keeping the emissions and get the 2149's instead?
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Old Feb 28, 2003 | 09:51 PM
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Default Re: Another Header Question? (JJ 86)

Or will I be better off keeping the emissions and get the 2149's instead?
I've been wondering the same thing...
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Old Feb 28, 2003 | 11:11 PM
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Default Re: Another Header Question? (JJ 86)

You will get a check engine light for the egr stuff. You can always have a chip burned to remove the egr stuff from the programming. I have mine blocked off and havent noticed a difference in driveability
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Old Feb 28, 2003 | 11:19 PM
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Default

I had no driveability problems blocking mine off, but I'll tell you this. I left the EGR system intact and only blocked it off on the header and on the intake manifold. So if I need to all I have to do is bolt the pipe in and turn EGR back on in the PROM.

The PROM literally has a toggle on/off for setting the troublecode that you can turn off so that you don't get anything.
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