Headers for 2004 5.4L

[AggieExpo]

I got those is stainless and they do rust. not much but they do. I will post a picture later when im doin my lift so you can see the rust on the headers.

 

[GAINMOB]

ExpeditionUser...where in HR are you? im at Langley AFB...and are you doing duals for the exhaust or just single side?

 

[ExpeditionUser]

ExpeditionUser...where in HR are you? im at Langley AFB...and are you doing duals for the exhaust or just single side?

I actually just moved up to Newport News. I'm not too far from Langley now.

 

[GAINMOB]

touche...maybe we'll meet up in Jan/Feb next year

 

[american steel]

Hey fellas,
Can anyone personally vouch for a set of shorty headers that fit the 2nd generation expedition with 5.4L 2V engine? Gibson has a set (part number GP220S), but even Gibson themselves cannot definitively tell me that they will fit a 2V.

Gibson makes a decent header for the truck and SUV motors.
if you're looking for more power and torque sorry to say but you're wasting time and money. unless you have a complete rebuild with upgraded camshafts bigger throttle body and raised compression headers wont do anything effective for those motors.
I have a set of Gibson shorty's on my expedition they work fine. when built my engine last year it made 342HP and 359FT TQ that's 12HP and 7TQ above the factory manifolds. but the engine had your basic cheap mods and bolt ons.

 

[Limited'08]

Who's Troyer and what does he do???

 

[GAINMOB]

Its been said that u wont see any performance out of the headers in 2nd gen

 

[american steel]

Its been said that u wont see any performance out of the headers in 2nd gen

you wont see much of any gains on any gasoline engine with high miles.
including a 3 valve.
most notable gains are seen in new engines, rebuilds or performance builds.

 

[superexpy]

I put them on mine and lost a pound of boost but thats a good thing....

 

[AbelNavyvet]

I have to disagree guys. I put the shorty headers on my 3V 5.4 with the complete magna flow system and notice a nice take off and aggressive sound. HEADERS alone I feel wont give you that much gains just minimal. I feel if your just going to do the headers you need to help the headers out with the complete exhaust system.

 

[GAINMOB]

I have to disagree guys. I put the shorty headers on my 3V 5.4 with the complete magna flow system and notice a nice take off and aggressive sound. HEADERS alone I feel wont give you that much gains just minimal. I feel if your just going to do the headers you need to help the headers out with the complete exhaust system.

Were u working overseas as a contractor?

 

[AbelNavyvet]

LOL! No.. you mean with KBR or Black water? No. I served in the US Navy 6 yrs Active and going on 9 yrs in the Navy Reserve Component. why you ask?

 

[darmahsd]

I have to disagree guys. I put the shorty headers on my 3V 5.4 with the complete magna flow system and notice a nice take off and aggressive sound. HEADERS alone I feel wont give you that much gains just minimal. I feel if your just going to do the headers you need to help the headers out with the complete exhaust system.

Which header did you use? So far, I found only one for the 3valve,
a stainless Gibson. It was over $700, I think.
Do you use the factory Y pipe in front of the MagnaFlow system?
If they make a better flowing Y pipe that bolts up like the shorties,
that's even better.
Like you said, all those things working in concert will give you
an actual gain.
Stephen

 

[AbelNavyvet]

I got the ceramic coated Gibson headers... they were like 640.00 on autoanything.com

on the magnaflow system I got the entire catalytic converter system. the only part I used that was factory was the ball coupling before the stock exhaust to get it welded on the tip of the NEW magna flow muffler in order for the complete system to be bolt on. I should have pics on my exhaust album.

 

[GAINMOB]

LOL! No.. you mean with KBR or Black water? No. I served in the US Navy 6 yrs Active and going on 9 yrs in the Navy Reserve Component. why you ask?

Confused u with someone else...my bad

 

[AbelNavyvet]

HEY HEY no problem bro..

 

[darmahsd]

I got the ceramic coated Gibson headers... they were like 640.00 on autoanything.com
On the magnaflow system I got the entire catalytic converter system. I should have pics on my exhaust album.

Thanks. I checked your album. I can see that it comes with a new Y pipe. The whole system clearly must cost way more than the cat back Magnaflow systems that I saw,
starting at around 5 or 6 hundred. Access to remove exhaust manifolds on my 1rst gen 2 valve was easy. I could see that replacing them with the shorty headers on
my '05 3 valve will be anything but. A project for the summer.
Stephen

 

[AbelNavyvet]

OOHH yeah! installing the header on the driver side is a piece of cake but the passenger side the compressor needed to come out. took about 6 hours just on the passenger side alone. then the cats are about another 2 hours the welding is the hardest thing. I feel.