Running open headers

[Shong1up]

If you moved the downpipe and exhaust entirely what kinds of gains could you expect to see?

 

[webby]

Gains? Gaining a relationship with every law enforcement officer in the area for noise & and exhaust violations.

 

[Shong1up]

ROFL

 

[Nix]

@ripply had his exhaust go straight out through the hood. I think he was building for 650hp.

 

[Nix]

Page 7-9

http://9thcivic.com/forum/threads/650whp-or-bust.14353/page-7

 

[Shong1up]

not gonna lie thats a sick build. Open headers forego the exhaust so it definitely is less restrictive.

 

[dpetro1]

Since we don't have a header you would need something attached to the exhaust port on the head.
The link above is a turbo setup and it's common to see hood exit on track cars. Probably not so good on the street (ie: parked in the rain)

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[webby]

"open headers" on the 9th gen would basically be a catless downpipe