Headers or two in one?

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Jun 17, 2012 | 12:53 PM

Len

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Joined: May 2010

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Headers or two in one?

Ok, all of you engineering experts!
Which is best for increased torque?
Is it two in one; or headers?

I've heard from both sides of the aisle from my "knowledgeable" friends -
Now I need to hear from the experts!

Jun 17, 2012 | 01:10 PM

03psd

Tourer

Joined: Mar 2010

Posts: 265

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I am far from an expert but with a relatively stock motor, I believe a collector is beneficial in increasing torque.

Jun 17, 2012 | 01:15 PM

firefighter156

Road Master

Joined: Sep 2008

Posts: 1,217

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From: WI

Quote:

Originally Posted by Len

Ok, all of you engineering experts!
Which is best for increased torque?
Is it two in one; or headers?

I've heard from both sides of the aisle from my "knowledgeable" friends -
Now I need to hear from the experts!

I certainly cannot claim to be an expert, but I can say, my research suggests that more often than not, a two in one produces more torque. However a lot of factors come into play. I have had a couple D & D Fatcats and they really do perform. Just my .02. Good luck.

Jun 17, 2012 | 01:15 PM

TORQUEY

Seasoned HDF Member

Joined: Aug 2010

Posts: 5,173

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From: East Coast

If you like the dual look, don't forget the 2 into 1 into 2, in which the joining point is still a collector.

Jun 17, 2012 | 01:16 PM

rooti

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Joined: Jul 2011

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From: New Braunfels, Texas

2-1 gets my vote

Jun 17, 2012 | 01:26 PM

Len

Thread Starter

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Joined: May 2010

Posts: 653

Likes: 2

Quote:

Originally Posted by TORQUEY

If you like the dual look, don't forget the 2 into 1 into 2, in which the joining point is still a collector.

I like it!

Good call!

Jun 17, 2012 | 01:28 PM

Len

Thread Starter

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Joined: May 2010

Posts: 653

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Seems we have an affirmation for the 2-into -1!

Thanks Forum!

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Jun 18, 2012 | 07:35 AM

grbrown

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Joined: Jun 2007

Posts: 45,429

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From: Bedford UK

Quote:

Originally Posted by Len

Seems we have an affirmation for the 2-into -1!

Thanks Forum!

I agree with that and can give you a comparison with true-duals. I had them on my current bike for a couple of years, then changed to a SuperTrapp Supermeg 2-into-1. Had them both set up on the dyno by the same tuning shop. I lost 1HP with the 2-into-1, but gained 15% low/mid range torque! In addition the bike is much smoother and sweeter running, so I am extremely pleased with the later set-up. Strongly recommend it!