Do I need a header?
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iTrader: (1)
Joined: Nov 2002
Posts: 2,504
From: Leg Humper
Car Info: '03 WRX wagon, faster than walkin'
IMHO, Headers make the biggest difference if you have an upgraded turbo. Equal length headers will make the most difference but the Maxim works headers (equal length) are $1500! OMG, it's just pipe!...I really want a set of equal length headers 
Registered User
Joined: Nov 2002
Posts: 1,780
From: San Diego
Car Info: Boosted Geo Prizm
For the $600 I spent on a lesser brand, the gains were felt throughout the RPM range and turbo spoolup is a tad quicker. But did my track times improve? No. However, this was on a stock turbo. Perhaps if I had something like a VF22, or a PE, or a Garrett; who knows.
FYI - all headers ARE NOT created equal..some are, some aren't. There are good sub $1000 units, and others that are pure and utter junk...do your research carefully. Same goes for over $1000 units..some are better than others in terms of qualty, etc.
What mods do you ahve that warrant a header upgrade? or what do you ahve planned? Reason I ask is thatnot everyones setup warrants the investment though many do)...with such a big purchase price, you want to make sure its worth it to you and your car's goals
Adam
www.z1auto.com
What mods do you ahve that warrant a header upgrade? or what do you ahve planned? Reason I ask is thatnot everyones setup warrants the investment though many do)...with such a big purchase price, you want to make sure its worth it to you and your car's goals
Adam
www.z1auto.com
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I have heard of all kinds of stories
I don't really have a personal issues, but depending on what mods you have, I have actually seen alot of people running bigger turbo's and headers, switch back to the stock manifold and get power. So IMO it depends on what your trying to do, I honestly think the issue is still up in the air!
My 3cents ~B
My 3cents ~B
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Adam, you have a very good point. My goal for the car is to make 300WHP. So far my mods are:
IHI VF34
3" catless turboback exhaust
MRT uppipe
Blitz SBC-iD boost controller
APEXi S-AFC
Blitz SUS Intake
TXS big TMIC
STi injectors
Supra TT pump
Perrin Fuel rail
Blitz Platinum plugs (2 steps colder)
IHI VF34
3" catless turboback exhaust
MRT uppipe
Blitz SBC-iD boost controller
APEXi S-AFC
Blitz SUS Intake
TXS big TMIC
STi injectors
Supra TT pump
Perrin Fuel rail
Blitz Platinum plugs (2 steps colder)
I agree...leave the headers alone...you would be FAR better off ditching the SAFC and going with a Utec for around the same price tag. You could port your stock manifold, but only if you are also willing to do the up-pipe, turbo as well..otherwise just wrap it as Notorious said...well worth the effort
Adam
www.z1auto.com
Adam
www.z1auto.com
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Posts: n/a
Reading yielded that the engine is just a convenient heat pump for a simple turbine - to spin the turbine faster you produce more heat - keep the heat in the pipe so it reaches the turbo - port your stock manifold and wrap it =)
(stainless doesnt reatain heat as well as inconel)
(stainless doesnt reatain heat as well as inconel)
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