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Discussion Starter #1
probably a noob question here but....what is the difference between 4-1, 4-2-1, 4-3-1 headers? and which is the best application to use for N/A?

Thanks
 

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4-3-1?

Maybe you mean a Tri-Y header, but I dont think they make one for our cars.

I've only seen them for the B series
 

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4-2-1 is the best for our motor i think, more low end power cuzz god know we need some
 

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BC race header is 4-2-1.... and thats probably the best header out right now if im not mistaken... so im going to say 4-2-1 is the best design for our cars
 

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I think it depends on what you're doing with the car and what other mods you will have. Drag (always above 6,000rpm--so you probably want more top end flow & power) vs. auto-x, road course (u will utilize more midrange rpm--so a header that gives you everything up top might not be the best thing.)

There is never one "best" anything. It all depends on what your application is.
 
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