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Exhaust flanges

Tiny
CEH414
  • MEMBER
  • 1988 CHEVROLET CAMARO
  • V8
  • 2WD
  • AUTOMATIC
What is the purpose of exhaust flanges with headers on high performance vehicles? I have been told it will add HP to the vehicle?
Monday, March 28th, 2011 AT 4:27 PM

5 Replies

Tiny
WRENCHTECH
  • MECHANIC
  • 20,761 POSTS
What are you calling a flange? Headers end in an outlet called a "collector"
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Monday, March 28th, 2011 AT 5:42 PM
Tiny
CEH414
  • MEMBER
  • 3 POSTS
The flange is mounted to the head and the header mounts to this flange.
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Monday, March 28th, 2011 AT 6:14 PM
Tiny
WRENCHTECH
  • MECHANIC
  • 20,761 POSTS
That's just to create a mating surface so the individual pipes can attach to the head.
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Monday, March 28th, 2011 AT 6:17 PM
Tiny
CEH414
  • MEMBER
  • 3 POSTS
Thanks.I was told that it would add HP and just couldn't figure out how. Again thanks!
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Monday, March 28th, 2011 AT 6:20 PM
Tiny
WRENCHTECH
  • MECHANIC
  • 20,761 POSTS
The headers themselves add the horsepower by decreasing backpressure and making it even to every cylinder.
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Monday, March 28th, 2011 AT 6:22 PM

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