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

hooker longtubes for LT1 ??

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Old Mar 3, 2006 | 06:59 AM
  #1  
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Default hooker longtubes for LT1 ??

does hooker make a L T header for LT1 vettes, website is kind of sketchy and I didnt get a response when I e-mailed them.

Thanks
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Old Mar 3, 2006 | 07:10 AM
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Originally Posted by Lateral Motion
does hooker make a L T header for LT1 vettes, website is kind of sketchy and I didnt get a response when I e-mailed them.Thanks
I believe most use the HKR2151, these also come w/no bungs welded on them (02 etc.).

Last edited by mseven; Mar 3, 2006 at 07:22 AM.
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Old Mar 3, 2006 | 09:30 AM
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This took literally less than 5 seconds with the advanced search:

http://forums.corvetteforum.com/sear...on&forum_id=48

Here's the search function:

http://forums.corvetteforum.com/search.php?
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Old Mar 3, 2006 | 07:42 PM
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I bought the Hooker 2151s for my '94 LT1, and I love them. They are not emission friendly. If you want the EGR hookups then get the 2149s. I wasn't concerned about emissions so I had the 02 bungs welded in and I removed the EGR system and the cats. If you get longtubes and you need emissions, you will have to use aftermarket cats because there is not enough room with the stock ones. If you do get rid of the emissions stuff, make sure to get a good tune for the car, because that makes a world of difference. With the tune, this mod gained me .4 and 5 mph on the 1/4 mile.
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Old Mar 5, 2006 | 06:36 AM
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Originally Posted by Irishpilot03
I bought the Hooker 2151s for my '94 LT1, and I love them. They are not emission friendly. If you want the EGR hookups then get the 2149s. I wasn't concerned about emissions so I had the 02 bungs welded in and I removed the EGR system and the cats. If you get longtubes and you need emissions, you will have to use aftermarket cats because there is not enough room with the stock ones. If you do get rid of the emissions stuff, make sure to get a good tune for the car, because that makes a world of difference. With the tune, this mod gained me .4 and 5 mph on the 1/4 mile.
Thanks, I was wondering how does your ecm know what to do when you get rid of your o2 sensors . I was not planning on running cats either and I still don't know if I'll keep the egr or not, I hear it doesn't make a difference.
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Old Mar 5, 2006 | 09:31 AM
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Originally Posted by Lateral Motion
Thanks, I was wondering how does your ecm know what to do when you get rid of your o2 sensors . I was not planning on running cats either and I still don't know if I'll keep the egr or not, I hear it doesn't make a difference.
Most people weld the bungs in themselves to use the 02s...
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Old Mar 5, 2006 | 06:33 PM
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Like you said, the EGR might not make a difference for performance, but it sure cleans up the engine bay. There is a really good paper on how to do this mod in "Tech Tips". This was the second best mod for the money I did next to the 4.10 gears. I had the guys at PCMforless tune my computer.
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