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Nov 26, 2002 | 11:04 AM

joshface15

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Aftermarket header

Can any one tell me if there is any diffrence between an equal length header or the ones that borla makes. I am considering getting the Borla 2.5 header but i wanted to know if the equal length ones had better flow and more Hp gains. Thanks

Nov 26, 2002 | 01:10 PM

N/A

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On a turbo application a equal length design is well worth it but on a non turbo application I'd have to wonder if its worth the cost.

Nov 26, 2002 | 04:18 PM

RugDoc2003

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i think that the problem is that with equal length headers for a 2.5l, the possibilty of turboing is out of the question (due to placement of the collector).

but the equal lenght headers ussually do have higher hp gains... they also cost more than the borlas (which can be used as turbo headers later).

rug

Nov 26, 2002 | 05:54 PM

Keiho

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The TWE equal length headers collect at the oem location I believe?

Nov 26, 2002 | 07:32 PM

imprezton

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wouldn't all headers collect at the OEM location, except those that are designed for a turbo retrofit?

(not arguing, trying to understand)

Nov 26, 2002 | 10:31 PM

Kostamojen

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From: Roseville, CA

Car Info: 1995 Subaru Impreza 1.8 L

Quote:

Originally posted by imprezton
wouldn't all headers collect at the OEM location, except those that are designed for a turbo retrofit?

(not arguing, trying to understand)

No. Any system not designed for the stock locations whether they are for turbo or N/A are simply not designed for the OEM locations.

The MRT system is not stock locations, neither is brullen, and I think there is another system coming out that is not designed for stock locations.

In my opinion, the stock angles suck, and you want a full system designed for better flow if you want real power improvement.

Nov 26, 2002 | 10:40 PM

imprezton

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I think my problem is that I don't understand "collector"

I thought it was where each headpipe bolts to the head. Is it where pipes join, finally becoming one pipe?

I hate to sound stupid, but there's really no better way to learn

Nov 26, 2002 | 11:08 PM

Scubaru

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From: In Dad's garage.

Car Info: MY02 GD WAGON, MY87 AW11

Quote:

Originally posted by imprezton
I think my problem is that I don't understand "collector"

I thought it was where each headpipe bolts to the head. Is it where pipes join, finally becoming one pipe?

I hate to sound stupid, but there's really no better way to learn

Collector is a term for where the header tubes come together and terminate at a "collector"

Im not really sure about where each headpipe bolts to the head. I've always called it an exhaust flange, im not sure if there is another word for it.