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97-03 5.4 headers

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Old Mar 5, 2009 | 01:37 PM
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97-03 5.4 headers

Whats the most ecomonical, easy to install and won't give me codes or air leaks. I know that most headers are a pain in the rear but give me you input. thanks
 
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Old Mar 5, 2009 | 01:53 PM
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As for economy, I have no idea if headers ( longtube ) can help or not, and all headers are a major pain in the A when it comes to manifold removal and header install.

The Dynatech Longtubes with hi-flow cats kit would be a good choice, $1200 but you get the LTs, hi-flow cats, 3" Y pipe, and I believe O2 extensions too.
 
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Old Mar 5, 2009 | 02:43 PM
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I don't think any headers help your gas mileage especially Long Tubes, I've heard LT's lose about 2mpg.
 
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Old Mar 5, 2009 | 02:50 PM
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I think by economical he meant cheap.

Any headers will be a pain to put on.
 
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Old Mar 5, 2009 | 02:56 PM
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he needs to look on ebay and the OBX long tube headers


if he does his exhaust sized right he will gain mileage...
 
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Old Mar 5, 2009 | 03:50 PM
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Originally Posted by jswd60
I think by economical he meant cheap.

Any headers will be a pain to put on.
Probably right.
 
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Old Mar 6, 2009 | 12:46 AM
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tarajerame- have you instaled obx headers. I have seen them and JBA, OBX and pacesetter on ebay and the price isn't that bad. I just know that there isn't much room in there and I don't want to modify fenders. Also some warp more than others and that is a pain taking off adjusting them and putting them back on. I like how they all advertise that they are bolt on installs, but there is allows hidden obsticles. I was hoping that someone had already installed and worked through the headaches for me.
 
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Old Mar 6, 2009 | 09:23 AM
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do a search, gotts2bme did install them along witha few others talk to those guys they all said it was a direct bolt in and no you won't have to modify the fenders just some pipes if you get the harley/lightning kit
 
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Old Mar 6, 2009 | 10:53 AM
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Originally Posted by ricochet97
tarajerame- have you instaled obx headers. I have seen them and JBA, OBX and pacesetter on ebay and the price isn't that bad. I just know that there isn't much room in there and I don't want to modify fenders. Also some warp more than others and that is a pain taking off adjusting them and putting them back on. I like how they all advertise that they are bolt on installs, but there is allows hidden obsticles. I was hoping that someone had already installed and worked through the headaches for me.
Pain In The ***? Yes.
Bolt in? Yes
You will likely brake your dip stick tube pulling it out, and you will also need O2 extensions for the front ones.
You will throw a SES light because of not having cats. For that i would recommend the Gotts O2 mod.
 
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Old Mar 11, 2009 | 02:05 AM
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Why wouldn't you use shorty headers, so you could keep your O2's?
 
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Old Mar 11, 2009 | 07:36 AM
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Originally Posted by ricochet97
Why wouldn't you use shorty headers, so you could keep your O2's?
WHAT??????????? why would you install something that is proven worthless (unless it was a stock part direct replacement due to damage??)



you use 02 sensors with the long tubes as well
 
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Old Apr 1, 2009 | 01:01 PM
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I'm going to bump this one: From my quick searches, it seems like the Pacesetters are 1.75" primaries and many of the others are 1.625". WAAAAY too big, IMHO. From my experience, 1.5" LT headers are fine in a car for a bit over 300 hp, and for the truck you're going to want the headers working at peak torque and you'd probably willingly sacrifice top end a little bit. I'd prefer to see 1.5" headers, even 1.375" (!!!) for a naturally aspirated 4.6/5.4.

Does anyone know of any quality girlyman headers like the ones I'm talking about?
 
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Old Apr 1, 2009 | 01:10 PM
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Most headers for these trucks are 1 5/8s which is perfect. 1.75" is biggwer than 1.625 so I dont understand what you are talking about there.
 
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Old Apr 1, 2009 | 01:16 PM
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Originally Posted by DarrenWS6
Most headers for these trucks are 1 5/8s which is perfect. 1.75" is biggwer than 1.625 so I dont understand what you are talking about there.
I know 1.75" is bigger than 1.625". I'm saying that I believe they're both too big for an otherwise stock engine putting out 250 hp, and I'd like to find 1.5" or smaller for my truck.

Bigger is not always better.
 

Last edited by ugly duck; Apr 1, 2009 at 01:19 PM.
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Old Apr 1, 2009 | 01:27 PM
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Originally Posted by ugly duck
I know 1.75" is bigger than 1.625". I'm saying that I believe they're both too big for an otherwise stock engine putting out 250 hp, and I'd like to find 1.5" or smaller for my truck.

Bigger is not always better.
Ok. Yes, that is true. The 1 5/8s tubes should be just find for you, Dynatechs set is 1 5/8s. They will greatly help your horsepower numbers also so you wont be stuck at 250.
 
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