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11-12-2010, 01:24 AM #1
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- Nov 2010
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- saint louis
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- 7
metallic blue- 2002 camaro Z28
what headers will pass emissions legally?
i just bought a 2002 camaro and i wanted to put headers on. but what will pass emissions?
Last edited by drew7798; 11-12-2010 at 01:29 AM.
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11-13-2010, 02:37 AM #2
If you have a custom made y pipe that incorporate real cats and still has egr fittings any header will.
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11-13-2010, 03:01 AM #3
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- Nov 2006
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- Indianapolis
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- 61
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- 5,188
Black- 2000 WS6 6spd Hooker LT
Anything that relocates the cats are illegal, so LT are not legal. Some have put on LT and a catted Y, and these will usually pass the sniffer test, but not a visual.
Shorty headers are legal, but they don't have much (~5-10 HP, maybe) over the stock manifolds, and I've heard that is only a gain on earlier LS1s, not an '02 like yours, so the cost isn't justified.
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11-13-2010, 05:46 PM #4
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- Jul 2010
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- Pittsburgh, PA
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- 138
Navy Blue- 1999 Camaro Z28
In reality, we can't really answer that. State & County laws determine what's legal and not. Start by asking the shop that does your inspections. They can tell you what will and won't pass local emission laws.
You also get into issues of, "What legally passes emissions, is not legal for street use." Local laws and what-not that prevent cutouts, glasspacs, etc... Again, talk to a local testing shop.
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11-15-2010, 09:08 PM #5
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- Dec 2002
- Location
- n/w chicago
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- 54
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- 6,932
black- 2000 nhra edition formula
all depends on what the state laws are. my long tube non catted headers pass all the time, but i dont have visual inspections
2000 nhra edition formula
a few bolt ons, 379 rwhp
11.96 @113.25
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11-16-2010, 08:12 PM #6
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