Headers
Thread Starter
Pro
Joined: Oct 2008
Posts: 564
Likes: 0
From: Houston TX
Headers
I have seen a couple threads, but just curious to see what history anyone has with headers on the C7...? What are the best from experience?, and I am a little concerned about increased sound too...don't want a loud car.
What power gains are you guys seeing from stock performance exhaust?
What power gains are you guys seeing from stock performance exhaust?
Tech Contributor
Joined: Jan 2006
Posts: 4,761
Likes: 240
From: Saint Louis MO
St. Jude Donor '14-'15
If you want to know about noise, all of the LTs will measurably increase loudness. Without cats, much more so.
If you have NPP, the idle will still be somewhat tame. The WOT will sound extremely loud, though.
ARH makes mid-length headers that offer a low-noise solution.
If you have NPP, the idle will still be somewhat tame. The WOT will sound extremely loud, though.
ARH makes mid-length headers that offer a low-noise solution.
Thread Starter
Pro
Joined: Oct 2008
Posts: 564
Likes: 0
From: Houston TX
I will look at the ARH mids then as want as minimal increase in noise as possible...I have looked but haven't seen any dyno information showing specifically header vs stock performance, and power gains...seems easier to just ask at this point.
Tech Contributor
Joined: Jan 2006
Posts: 4,761
Likes: 240
From: Saint Louis MO
St. Jude Donor '14-'15
Seriously, man?
This one specifically spells out everything you're asking:
http://forums.corvetteforum.com/c7-t...ts-inside.html
And for good measure, here are a bunch more:
http://forums.corvetteforum.com/c7-t...ts-inside.html
http://forums.corvetteforum.com/c7-t...id-length.html
http://forums.corvetteforum.com/c7-t...r-install.html
http://forums.corvetteforum.com/c7-t...ader-test.html
Killing me here...
This one specifically spells out everything you're asking:
http://forums.corvetteforum.com/c7-t...ts-inside.html
And for good measure, here are a bunch more:
http://forums.corvetteforum.com/c7-t...ts-inside.html
http://forums.corvetteforum.com/c7-t...id-length.html
http://forums.corvetteforum.com/c7-t...r-install.html
http://forums.corvetteforum.com/c7-t...ader-test.html
Killing me here...
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Tech Contributor
Joined: Jan 2006
Posts: 4,761
Likes: 240
From: Saint Louis MO
St. Jude Donor '14-'15
I'm glad it helped. Like I said, I wasn't trying to be rude.
I'm standing in my garage with greasy hands working on my race car (and messing with wires on the C7) and still found that within a few minutes.
But again, hopefully you can decide from that information. I would recommend the ARH mid-lengths if you're concerned about noise.
I'm standing in my garage with greasy hands working on my race car (and messing with wires on the C7) and still found that within a few minutes.
But again, hopefully you can decide from that information. I would recommend the ARH mid-lengths if you're concerned about noise.
Thread Starter
Pro
Joined: Oct 2008
Posts: 564
Likes: 0
From: Houston TX
Since mine will be a forced induction car I may have to go long-tubes...the only question unanswered that I sent to Ron was can I keep the stock cats since changing those out seem to be the major factor for increased volume...
Tech Contributor
Joined: Jan 2006
Posts: 4,761
Likes: 240
From: Saint Louis MO
St. Jude Donor '14-'15
Headers with the stock exhaust will be a much better gain for the money than a catback. All of the catbacks out now will only increase the sound from the OEM NPP.
If you add headers down the road with the catback, it may well be very loud.
If you add headers down the road with the catback, it may well be very loud.
Tech Contributor
Joined: Jan 2006
Posts: 4,761
Likes: 240
From: Saint Louis MO
St. Jude Donor '14-'15
I wouldn't change the OEM NPP (I won't be anyway), and would go with a catted LT or mid-length setup from ARH with the S/C kit of your choice.
The cats will cut down on a lot of the noise you're not looking for.
The cats will cut down on a lot of the noise you're not looking for.
