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Discussion Starter #1
So explain to me what is the difference between them
and which should be better to get more of a gain..

The race header is a 4-1
and the stock is a 4-2-1

so which one does the trick?

also, would you get more of a gain if you port
the stock?
 

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^^^Exactly. Think of it this way: Anyone (with the right skills) can weld together a header and say it's good. However, how many of those headers spent hours on a flowbench (like I'm assuming the SVT did) or had a multi-billion dollar company's research backing it?

Long story short, the 4-2-1 flows better and of all of the race headers out there, the SVT is the best.
 

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diff styles of headers work better on diff engines... the svt just works best on ours.
 

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Agreed, with all of them, i have heard there are dyno sheets showing 2-3 hp gains with a 500-600 dollar header but a dyno cant read less then 5 hp if im right so yeah yeah, i think i would rather keep my stock header rather than spend that much for, uh, 2-3 hp, uh....yeah... haha SVT is the best....

Andrew
 

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The stock header is all around the best, but if you road race where the car is always above 6k rpm, a race header does provide gains up top (with loss down low).
 

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Discussion Starter #8
The stock header is all around the best, but if you road race where the car is always above 6k rpm, a race header does provide gains up top (with loss down low).
Ok that makes sense then
:]

so is heat wrapping the headers better than
keeping the heat shield in place?
 

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Definitly, heat wrap is the REAL way to go for performance.... getting it "JET-HOT" coated LOOKS better... but it will never give you the same results as good old header wrap.
 

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hey orange does wrapping your hfc have any side effects? or is it just as good as wrapping your header?
 

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^^Keeps your oil Cooler.. The header sits right below your oil pan.. I really wish I would have heatwrapped mine before installing it
 

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i was thinking about doing it myself, but i was wondering if it will have any ill effects witht he 02 sensors and such, since they will take longer to get to temp
 

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The O2 sensors are inside the cat pipe when they're mounted. With the heat wrap, they actually get up to temp faster.
 

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ok.. cool. I'm def goin to do this since i have wrap layin around.
 

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Obama Can't Gymkhana
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If your Talking about Heat Wrap.. Yes.. Same effect... If you talking about getting performance absolutely. Although Im partial to the High Flow cat.. Sounds better IMO and is illegal..
 

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I've heard that wrapping a cat will make it more efficient, but there is also a bad side effect... once your exhaust temps get around 1600* the ECU will start adding fuel to help cool the cat.

I would definitly wrap an ORP, I have my exhaust on the SVT wrapped from the turbo to the flex pipe... and you can definitly tell it when working under the car after it has been running.
 
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