Hooker L/T Headers- 2151?
Thread Starter
Burning Brakes
Joined: Nov 2004
Posts: 834
Likes: 1
From: Keller Texas
Hooker L/T Headers- 2151?
I just bought a brand new pair of Hooker headers L/T. When I opened the box I noticed that they do not have the o2 bung on the header and it did not have the opening on top of the header between 3 and 5 cylinder witch is the (EGR) I think that is what it is called but it is for the emissions. Is this the correct header? I thought all of these openings would be on the header if it was correct.
Drifting
Joined: Jan 2002
Posts: 1,606
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From: Las Cruces NM
Hooker 2151's are the ones that don't have any of the egr/ AIR stuff, as you already found out. The 2149's are the ones you're looking for. They have the 02 sensor bung aready there as well as the EGR crossover, and the AIR trees.
Team Owner
Joined: Sep 2003
Posts: 25,295
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From: I'm the walkin dude I can see all of the world...
St. Jude Donor '03
Originally Posted by RED LT4
So let me ask this. If I put the 02 bung in and dont use the egr tubes what kind of isues will I be dealing with?
You need to install the O2 bungs. This is not difficult just take it to a muffler shop and have them install the bungs exactly 5 in from the rear collector like so:
(Cost $20 bucks do this before you have them coated!!!)
(Same for the other side here)
As far as the AIR/EGR you are going to need to remove that stuff. After that you will need custom tuning to run the car w/o AIR/EGR cause the PCM will be looking for this stuff.
You will not be able to pass emissions so you have the wrong header if you live in a emissions controled state.
Thread Starter
Burning Brakes
Joined: Nov 2004
Posts: 834
Likes: 1
From: Keller Texas
Man this really bites the big one. I bought these from a vender in San Diego Ca. and it tokk all most a month to get them and then when I do they are the wrong ones. The o2 bung is not a big beal although I bought coated headers but the egr/air is because I am in texas and I believe it needs it. Thanks for all of the info
Racer
Joined: Mar 1999
Posts: 424
Likes: 0
From: Austin Texas
The 2151's are by far the most popular install for an LT4 which
doesn't have as much emissions plumbing as the LT1. You
need to find someone here that's done the install to an LT4.
I have not done it to mine but will buy the 2151's when I get
around to it. My guess is your only hic-up is buying pre-coated
since you will get a hickie when the bungs are installed.
Have a good'un............MickyD
doesn't have as much emissions plumbing as the LT1. You
need to find someone here that's done the install to an LT4.
I have not done it to mine but will buy the 2151's when I get
around to it. My guess is your only hic-up is buying pre-coated
since you will get a hickie when the bungs are installed.
Have a good'un............MickyD
Thread Starter
Burning Brakes
Joined: Nov 2004
Posts: 834
Likes: 1
From: Keller Texas
Originally Posted by Micky Davis
The 2151's are by far the most popular install for an LT4 which
doesn't have as much emissions plumbing as the LT1. You
need to find someone here that's done the install to an LT4.
I have not done it to mine but will buy the 2151's when I get
around to it. My guess is your only hic-up is buying pre-coated
since you will get a hickie when the bungs are installed.
Have a good'un............MickyD
doesn't have as much emissions plumbing as the LT1. You
need to find someone here that's done the install to an LT4.
I have not done it to mine but will buy the 2151's when I get
around to it. My guess is your only hic-up is buying pre-coated
since you will get a hickie when the bungs are installed.
Have a good'un............MickyD
But the problem is that the egr/air tube is not on the header. I can have the o2 bung put in with no problem but it is the egr/air tube that is killing me. So what does every one do with the egr/air tube?? Help
Team Owner
Joined: Sep 2003
Posts: 25,295
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From: I'm the walkin dude I can see all of the world...
St. Jude Donor '03
Originally Posted by RED LT4
But the problem is that the egr/air tube is not on the header. I can have the o2 bung put in with no problem but it is the egr/air tube that is killing me. So what does every one do with the egr/air tube?? Help
Yout could go ahead and attept to weld the AIR bung into the 2151s. Probably would need to talk to a real weld shop instead of a exhaust shop. I think it wouldn't be tough for someone who is skilled with a welder.
If it is possible you could return them an call Merle at Exotic muscle that might be your best bet. Probably going to add a couple bucks but those headers will be bolt on.
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If yours are already coated, youre looking into something thats a real bear of a job, its not easy to weld into anything thats already been ceramic-coated.
Thread Starter
Burning Brakes
Joined: Nov 2004
Posts: 834
Likes: 1
From: Keller Texas
Well the problem I am having is Hooker does not make a header for the 96 that has the egr tude opening in the top for a lt motor!!!! This really sucks because now its going on 3 months with no vette. The 2149 do not have the correct opening for the 96 witch is in the middle between 2 and 4
Advanced
Joined: May 2005
Posts: 87
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From: knox. tn.
I feel your pain the same thing happened to me from jegs , they told me they would work & when I received them they didn't work.I called hooker the guy explained to how to make them work , but told me the manifolds on the LT4 flowed pretty good so I would only be looking at5or6 horse, needless to say jegs got there kit back.You figure the cost of the headers plus the time plus the cost of having your local shop modify the headers for all the emissions stuff.Doesn't make sense over 5 or 6 horse.
Thread Starter
Burning Brakes
Joined: Nov 2004
Posts: 834
Likes: 1
From: Keller Texas
Originally Posted by LT4-Z51
I feel your pain the same thing happened to me from jegs , they told me they would work & when I received them they didn't work.I called hooker the guy explained to how to make them work , but told me the manifolds on the LT4 flowed pretty good so I would only be looking at5or6 horse, needless to say jegs got there kit back.You figure the cost of the headers plus the time plus the cost of having your local shop modify the headers for all the emissions stuff.Doesn't make sense over 5 or 6 horse.
So what did you do? Are you installing L/T?
Advanced
Joined: May 2005
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From: knox. tn.
I'm not going to install headers on mine , I love my LT4 but when it comes to the exhaust they are a pain.Everything is different on them than a 95 or older.So alot of com.tend not to make parts for a exhaust that was only made in 96.I think they do make shorty headers for a LT4 but they are really no better than stock.I know TPIS makes long tube headers for the LT4 at the everyday low price of about a grand if money is not an issue , check them out.
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From: DrunkDefender
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St. Jude Donor '07-'10
Red, the LT4 does not have an egr valve. The only thing you'll have is the air injection. If you're doing away with the cats then you dont need air injection anyways. If there is no emmisions testing in your area what I would do is have o2 bungs welded in, put on the headers, remove the air pump and air injection plumbing, have the PCM re-programmed for the headers and to ignore the air injection[$200+/-]. If you have emmisions inspections you better either talk with some local guys about what they did or send em back and get a set of EM or TPIS.
FWIW, longtubes are worth anywhere from 15 - 20 rwhp in most cases.
If its just more power you want and cant do the longtubes because of emmisions just throw a mild cam in instead. The hotcam swap costs less than $400 on an LT4 for all parts, gaskets springs etc etc and with a tune [$200 at PCMFORLESS.COM] you can still pass emmisions.
FWIW, longtubes are worth anywhere from 15 - 20 rwhp in most cases.
If its just more power you want and cant do the longtubes because of emmisions just throw a mild cam in instead. The hotcam swap costs less than $400 on an LT4 for all parts, gaskets springs etc etc and with a tune [$200 at PCMFORLESS.COM] you can still pass emmisions.
