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

Hooker 2151 or 2149's

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Old Feb 7, 2003 | 05:30 PM
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Default Hooker 2151 or 2149's

Which one do I need if I want to keep my emissions equip.

Can I still pass emissions with them.

Is their a power difference.

And what eles would I need to bolt them in?
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Old Feb 7, 2003 | 05:37 PM
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1. The 2149s have the emissions stuff built into them.

2. Visual no, sniffer yes.

3. Between the 2149 and 2151? No. Between stock manifolds and these, yup.

4. A new front y-pipe, some header gaskets
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Old Feb 7, 2003 | 09:42 PM
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Default Re: Hooker 2151 or 2149's (vetteguy216)

Tube size, lenghts, and configuration of these two are the same. Therefore, the performance should be identical. The 2149s have the smog hook ups, as stated. The 2151s don't. Also the 2149s have the ceramic coating, the 2151s, don't. If you want coated 2151s, order, 2151-1. Good luck, and...

RACE ON!!!
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Old Feb 7, 2003 | 10:12 PM
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Default Re: (scorp508)

Why wont you pass a visual inspection if you have headers with egr and air tubes on them??? Not sayin i dont believe you just wondering why......Not like i am gonna hook that crap up anyway....... :blueangel:
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Old Feb 7, 2003 | 11:00 PM
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Default Re: (Wheelman)

No pre-cats..
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Old Feb 8, 2003 | 11:11 AM
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Default Re: (Wheelman)

Why wont you pass a visual inspection if you have headers with egr and air tubes on them??? Not sayin i dont believe you just wondering why......Not like i am gonna hook that crap up anyway....... :blueangel:
You eliminate the precats, and the smog inspector might know what headers look like and get you for it. Youre not supposed to tamper with any of the smog stuff that comes with the car.
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Old Feb 8, 2003 | 03:00 PM
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Default Re: (vader86)

If I get the 2151's will I be able to pass the rollers. :chevy
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Old Feb 8, 2003 | 03:10 PM
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Why wont you pass a visual inspection if you have headers with egr and air tubes on them???
Sorry, that was meant only for the 2151s. Although in CA neither option is smog legal.
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Old Feb 8, 2003 | 06:15 PM
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Default Re: (scorp508)

Where is the best place to buy the hooker 2149's and how much hp increase should i expect with a bascially stock setup?
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Old Feb 8, 2003 | 09:45 PM
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Default Re: (JJ 86)

Can you get the 2149's in the silver finish instead of the black?
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Old Feb 9, 2003 | 10:50 AM
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Default Re: (JJ 86)

Longtube headers on an L98 give an average of about 15hp.
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Old Feb 9, 2003 | 11:17 AM
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Default Re: (vetteguy216)

Can you get the 2149's in the silver finish instead of the black?
Yes the silver finish is the ceramic coating http://www.ftforce.com/exhaustchevvette3.htm
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Old Feb 10, 2003 | 12:07 AM
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Default Re: (ld85)

Can you get the 2149's in the silver finish instead of the black?

Yes the silver finish is the ceramic coating
At summit the ceramic coated 2149's have a black finish.
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