7.3 Headers / Performance manifolds

Powerstroke Racer

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What's the point? I have a set on mine. Don't notice any difference except for more engine noise.
headers are definitely not for everybody but for those that understand and can make use of their benefits they are well worth the money.
Was wondering if theirs any dyno graphs showing quicker spool/lower egts?

Swamps has already done some testing and showed consistent gains of 25-30 hp across the board.
 

golfer

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Headers have shown HUGE gains...triple digit..with headwork.

not headwork & headers...for the same test.

but dynoed our Stage2 heads with stock manifolds...

then dynoed our Stage2 heads with the headers...huge. huge gains when the ONLY change were swapping on headers.
 

TARM

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Wow that good to know. So the stock headers match the flow rates well of the stock heads but once they open it any the headers become the restriction. Thats very good to know. I had always wondered when they really start to show actual power gains versus only effects on spool up. Awesome!!!
 

powerstrokenstang

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Do the empire headers bolt up to any standard mount kit? Also has any one heard anything on steedspeed if they are still gonna make some manifolds?
 

PSDEng

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Yes the headers are listed on his website, they're listed out of stock at the moment though. 7.3-->Exhaust-->Headers
 

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