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exhaust system?
Poll ended at Thu May 17, 2012 9:14 pm
6 into 1 headers 14%  14%  [ 3 ]
3 into 1 headers 24%  24%  [ 5 ]
Dutra Duals 62%  62%  [ 13 ]
Total votes: 21
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 Post subject: headers
PostPosted: Mon May 07, 2012 9:14 pm 
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2 BBL ''SuperSix''

Joined: Sat Jul 09, 2011 8:22 pm
Posts: 14
Car Model:
just finishing up my build trying to figure out the exhaust system. im thinking of headers but not sure. what im thinking now is either 6 into 1 headers, 3 into one headers, or Dutra Duals. any suggestions or anyone who has any of them for sale let me know. thanks

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 Post subject:
PostPosted: Mon May 07, 2012 9:49 pm 
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Supercharged
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Joined: Thu Jan 27, 2005 8:32 pm
Posts: 7834
Location: Portland-ish
Car Model: Fiat 500e
I say no on 6-1 headers for anything. What you want from your vehicle and the engine's state of tune will determine whether I vote for 3-1 tube headers or Dutra's.

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 Post subject:
PostPosted: Mon May 07, 2012 10:00 pm 
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2 BBL ''SuperSix''

Joined: Sat Jul 09, 2011 8:22 pm
Posts: 14
Car Model:
The plan is to have a driver that I can take to the strip and hold my own. It is a 2 bbl carter bbd with over sized valves in a 69 head. The bottom end of the engine is stock

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 Post subject:
PostPosted: Mon May 07, 2012 11:29 pm 
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Turbo EFI

Joined: Sat Feb 20, 2010 10:23 am
Posts: 1343
Location: N. Ga.
Car Model: 64 Valiant
The addition of headers to an otherwise stock engine will be of little benefit. Upping the compression and adding a performance camshaft along with other mods like an upgraded ignition will be better suited for header usage. A 3 into 1 header design has shown to be a better design than the 6 into 1 style.

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 Post subject: headers
PostPosted: Fri May 11, 2012 9:03 pm 
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2 BBL ''SuperSix''
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Joined: Fri Apr 20, 2012 6:45 pm
Posts: 15
Location: Irvine, CA
Car Model:
I used to build headers and custom exhaust systems proffesionally for several yrs and I do aggree that the 3into1 system for an inline 6 is the over all best header to go with.

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 Post subject:
PostPosted: Fri May 11, 2012 9:20 pm 
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Board Sponsor & Contributor

Joined: Thu Oct 31, 2002 5:39 pm
Posts: 24803
Location: North America
Car Model:
Street driver with stock type intake and BBD + wants better exhaust flow to go faster = Dutra Duals.

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 Post subject: headers
PostPosted: Fri May 11, 2012 9:38 pm 
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2 BBL ''SuperSix''
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Joined: Fri Apr 20, 2012 6:45 pm
Posts: 15
Location: Irvine, CA
Car Model:
For a fairly stock engine, I'm with you there Dan.

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