headers on my 08?
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Laughing Gas
Joined: Mar 2009
Posts: 1,028
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From: long island
headers on my 08?
is there a set of headers for my 2008 f250 5.4 rwd that will install somewhat easily without me throwing tools across the garage? I see a lot more options for the older trucks. I have a pretty annoying exhaust manifold leak and I figure I might as well throw some headers on if im gonna be in there. I really want to go for sound rather than power. what are my options? I think I saw a set by flowmaster that looked decent.
Laughing Gas
Joined: Jun 2011
Posts: 1,223
Likes: 89
From: TN
I am going to be doing the same on my '04 V10 soon. Recommendations from this site point to Doug Thorley long tube headers. I am not sure if they are offered for your year or engine size. I can tell you they are pricey but seem to be worth the cost.
Lead Driver
Joined: Nov 2008
Posts: 8,449
Likes: 70
From: South Jersey
No one makes long tube headers for the super duty 5.4 trucks, with that said ill start by saying i have Gibson shorty stainless on my 2004 5.4 F350 and they do nothing but loghten your wallet. I didnt feel any power increase maybe if i had the truck dynod MAYBE. only a long tube header is gonna give you torque increase on these trucks, so your left with this. Buy a set for a F150 of your era truck and see how the fit down between the frame rails (your gonna need to modify the y-pipe anyways). Ive been wanting to do this now for years since installing my shorty headers but i dont have the spare cash to "test" a set of f150 headers. If i was gonna do it over id keep my stock manifolds and just install a set of stainless steel ARP studs and forget about it
Posting Guru
Joined: Dec 2011
Posts: 1,247
Likes: 3
From: monroe ct
I was told that Ford racing shortly headers off a mustang would fit my 08 5.4 no problem but with no noticeable power increase. I have done manifolds at 50k and 80k miles. I'm now at 102 so I'm assuming they will need to be done again soon. I will do headers and good quality fasteners so I will never have to do them again
Lead Driver
Joined: Nov 2008
Posts: 8,449
Likes: 70
From: South Jersey
Nojoke whats going bad the Ford studs? If it happened twice to me i would have bought the ARP stainless studs then, i have all original Ford studs that i reused when i did my headers and they are all fine. I do wash my truck off a lot during the winter so maybe that's why or it could have been because I coated them with high temp anti-seize?
Laughing Gas
Joined: Jun 2013
Posts: 1,026
Likes: 23
Headers and 'never have to do them again' don't belong in the same sentence ime. 
When I looked into headers for my 5.4 I came to the conclusion that there would be no benefit over stock manifolds unless you could go long tube and I fought with long tube headers on my 5.8's for years. Never again.
When I looked into headers for my 5.4 I came to the conclusion that there would be no benefit over stock manifolds unless you could go long tube and I fought with long tube headers on my 5.8's for years. Never again.
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so9956
Lightning, Harley-Davidson F-150, Roush F-150 & Saleen F-150
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Jul 6, 2006 10:51 PM
