LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

LPP headers

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Old 04-03-2010, 07:01 PM
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LPP headers

I have a few questions, I'm looking into buying them but they don't really mention if the still work with the EGR system or if i will have to remove it and I can't really tell from the pictures. also If i purchase the y-pipe also will it match up to the stock cat location? Anyone with them please let me know how they fit and If anything needs modified please? thanks
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Old 04-03-2010, 07:49 PM
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The lpp longtubes do not have provisions for egr or air. It's not hard to delete both systems from the car and it cleans up the engine bay a good bit. However you won't pass emmisions tests if your state requires it. The y-pipe they sell is a "off road" style y-pipe so you cannot keep the cat.

They are a very nice header but not the only ones out there. I emailed the company and made sure they did not use that rear bolt from the manifold. Maybe you can do the same with pacesetter or hooker or maybe someone else will chime in that have them and confirm they don't use that bolt.
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Old 04-03-2010, 08:37 PM
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Ok, which also will require me to get the chip reprogrammed correct?
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