Heades and cat-back
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Joined: Nov 2009
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From: Houston TX
Headers and cat-back
I have decide to do the full exhaust and take my chances with the warranty. My question is the size of header primaries and exhaust pipes. Should I use 1 7/8 or 1 3/4 headers and do I go with 2 1/2 or 3" cat-back. I am really leaning towards American Racing LT's and Borla cat-back. I welcome all suggestions from every one. Ya'll are the best. 
Last edited by Domestic Disturbance; Nov 22, 2009 at 07:00 PM.
Safety Car
Joined: Sep 2007
Posts: 4,359
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From: Los Alamitos California
St. Jude Donor '09
I have decide to do the full exhaust and take my chances with the warranty. My question is the size of header primaries and exhaust pipes. Should I use 1 7/8 or 1 3/4 headers and do I go with 2 1/2 or 3" cat-back. I am really leaning towards American Racing LT's and Borla cat-back. I welcome all suggestions from every one. Ya'll are the best.
The difference between 1 3/4 or 1 7/8 LTs isn't worth talking about, unless you're making ungodly amounts of power. Sam (PowerLabs) proved this some time ago. Catbacks don't make power, unless you consider 2-6 rwhp "power". They are good for sound, not power. I'd save the catback money for something that will actually make power.
San
Pro
Joined: May 2007
Posts: 585
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From: Ocean County NJ
I have decide to do the full exhaust and take my chances with the warranty. My question is the size of header primaries and exhaust pipes. Should I use 1 7/8 or 1 3/4 headers and do I go with 2 1/2 or 3" cat-back. I am really leaning towards American Racing LT's and Borla cat-back. I welcome all suggestions from every one. Ya'll are the best.
If you are not planning on doing serious HP mods, I would use 1 3/4 headers. Otherwise, 1 7/8 headers.
I would not get the Borla cat back.
I would get the entire exhaust in 3" and then I would pick up a set of OEM mufflers off a Z06. That way, the Z06 mufflers bolt right up, you have the ability to control the system with an NPP in a Box and you have it all - a larger exhaust for future mods, all in 3" so no need to cut up the Z06 mufflers and make them work with your 2.5 " exhaust, and the ability to open it when you want it loud and close it for silence.
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Joined: Nov 2009
Posts: 62
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From: Houston TX
[QUOTE=07 Z51;1572221478]If you are not planning on doing serious HP mods, I would use 1 3/4 headers. Otherwise, 1 7/8 headers.
I would not get the Borla cat back.
I would get the entire exhaust in 3" and then I would pick up a set of OEM mufflers off a Z06. That way, the Z06 mufflers bolt right up, you have the ability to control the system with an NPP in a Box and you have it all - a larger exhaust for future mods, all in 3" so no need to cut up the Z06 mufflers and make them work with your 2.5 " exhaust, and the ability to open it when you want it loud and close it for silence.[/QUOTE
If not the Borla - suggestions
I would not get the Borla cat back.
I would get the entire exhaust in 3" and then I would pick up a set of OEM mufflers off a Z06. That way, the Z06 mufflers bolt right up, you have the ability to control the system with an NPP in a Box and you have it all - a larger exhaust for future mods, all in 3" so no need to cut up the Z06 mufflers and make them work with your 2.5 " exhaust, and the ability to open it when you want it loud and close it for silence.[/QUOTE
If not the Borla - suggestions
