Headers for 2004 5.4L
- Thread starter ExpeditionUser
- Start date
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ExpeditionUser...where in HR are you? im at Langley AFB...and are you doing duals for the exhaust or just single side?
OP
OP
ExpeditionUser
Well-Known Member
touche...maybe we'll meet up in Jan/Feb next year
american steel
Full Access Members
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
Well-Known Member
Who's Troyer and what does he do???
Its been said that u wont see any performance out of the headers in 2nd gen
american steel
Full Access Members
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
Full Access Members
I put them on mine and lost a pound of boost but thats a good thing....
AbelNavyvet
Full Access Members
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.
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