Fender exit headers

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Fender exit headers

Post  HorsinAround on May 22nd 2013, 6:23 pm

What is the story on all the headers I am seeing that exit through the fender? What is the benefit?
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Re: Fender exit headers

Post  richter69 on May 22nd 2013, 6:57 pm

room available
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Re: Fender exit headers

Post  bruno on May 22nd 2013, 7:49 pm

room, downforce
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Re: Fender exit headers

Post  bbf-falcon on May 22nd 2013, 7:58 pm

Various reasons.Noise,fumes,sheet metal rattle,sound better,and SOMETIMES easier access to engine AND oil pan. The guy that built Harold's is gonna build me a set.

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Re: Fender exit headers

Post  Mustang-junky on May 22nd 2013, 8:07 pm

Easier routing for down pipes on turbo cars.

Jess
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Re: Fender exit headers

Post  Barney on May 22nd 2013, 8:15 pm

So you can shoot blue flames on the hose at night.
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Re: Fender exit headers

Post  maverick on May 22nd 2013, 10:10 pm

My car is so freakin' low, there was nowhere else to put 'em. Side note: I no longer need to stuff my ears with cotton inside a full face helmet. Noise in the cockpit is at least cut in half. Floor is cooler, too.
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Re: Fender exit headers

Post  HorsinAround on May 22nd 2013, 10:18 pm

I was guessing easier to tune and a power gain from fewer bends. Figured the noise would still be there since its right in front of the side window.

Are you using merge collectors with these or straights?
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Re: Fender exit headers

Post  maverick on May 22nd 2013, 10:26 pm

I stepped mine, 2 1/8" to 2 1'4", then to a merge collector. Downside on my deal, the primaries are too short. Yes, it shoots flames w/o a bottle. The interior noise deal is much improved because the collectors point AWAY from the car. Can't speak for the folks standing at the fence, tho.
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Re: Fender exit headers

Post  Race Ready Fabrications on May 22nd 2013, 10:39 pm

I built a set for my car last year and love them. Car is quiter, no alky fumes and the underside of the car is cleaner.
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Re: Fender exit headers

Post  bbf-falcon on May 22nd 2013, 10:53 pm

...............
I think they sound a lot better.

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Re: Fender exit headers

Post  cool40 on May 22nd 2013, 11:28 pm

Race Ready Fabrications wrote:I built a set for my car last year and love them. Car is quiter, no alky fumes and the underside of the car is cleaner.
this^^ x10! Laughing the floor in my car was cracked in a few places so the m5 fumes realy sucked!
bbf-falcon wrote:...............
I think they sound a lot better.
i dont like mine at idle,sounds like a open manifold Rolling Eyes
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Re: Fender exit headers

Post  HorsinAround on May 23rd 2013, 9:49 am

Ok, I'm convinced. I know when I went to upright headers on the puller, it was much quieter in the cab. Looks like I'll have to plan to build a set of these. I am thinking of doing a set of stepped headers as well. What merge collectors are the most popular?
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