8-4-1 Headers (Video)

[Bulldogs22]

I would also agree ARH is the best sounding I’ve personally heard. If only someone would make 200-300 cell high flow cats that aren’t over 4k like fabspeed to bolt to the factory headers. I considered it but for that price you would think they are made of diamonds

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[galaxy]

Can there really be than much influenced sound difference between the current headder offerings? It's my understanding the Kooks 350 set up is clean sheet; not borrowed/rebranded coyote parts. And the Kooks on my '12 GT is the best sounding coyote I know of. Sure, all the pieces go into the final sound, but....IDK

 

[honeybadger]

Can there really be than much influenced sound difference between the current headder offerings? It's my understanding the Kooks 350 set up is clean sheet; not borrowed/rebranded coyote parts. And the Kooks on my '12 GT is the best sounding coyote I know of. Sure, all the pieces go into the final sound, but....IDK

it can affect it quite a bit. however, I will say almost all of the manufacturers i've seen make the same long tube headers. When I was designing mine, I looked at pretty much all the big players. they pretty much all pair the same cylinders together at the collector in the same order (which is not optimized for the Voodoo firing order), vary 3-4 inch in length between shortest and longest and follow the same rough routing path.

there's some stuff you can do to tone down rasp - like stepped headers, equal length, proper mid-pipe sizing, etc. that a lot of the mass produced stuff doesn't touch because of cost.

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