Headers question
Race Director
Joined: Feb 2013
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From: Nazareth, PA.
St. Jude Donor '17
Le Mans Master
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From: lake havasu city arizona
Race Director
Joined: Feb 2013
Posts: 12,687
Likes: 224
From: Nazareth, PA.
St. Jude Donor '17
seriously, not being mechanically inclined I have a shop here in my area that does whatever I need done on my car. All I know is that I'm thinking of putting a set of headers on my car and I WANT TO KEEP my npp exahaust. If that means going without the "cats" that's fine. Let me ask you, if you were going with headers, what approach would you take?
Le Mans Master
Joined: Sep 2014
Posts: 7,001
Likes: 988
From: lake havasu city arizona
NSF, I know nothing about headers so I have no clue where I'm going. seriously, not being mechanically inclined I have a shop here in my area that does whatever I need done on my car. All I know is that I'm thinking of putting a set of headers on my car and I WANT TO KEEP my npp exahaust. If that means going without the "cats" that's fine. Let me ask you, if you were going with headers, what approach would you take?
seriously, not being mechanically inclined I have a shop here in my area that does whatever I need done on my car. All I know is that I'm thinking of putting a set of headers on my car and I WANT TO KEEP my npp exahaust. If that means going without the "cats" that's fine. Let me ask you, if you were going with headers, what approach would you take?The ones you are dealing with just needs the correct cats & X pipe, but I'm no expert.
Your Vette I believe has 4 cats (2012 and later) so you would wind up with just 2, whereas the 2011 only has 2 to begin with.
I'm sure someone more knowledgeable will chime in.
This is why I asked when Hinson would offer a complete package
Good luck Buddy
NSF
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Joined: Mar 2011
Posts: 13,262
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From: SW Florida
2021 C6 of the Year Finalist - Modified
In my case, I installed a set of Pfadt headers along with the Pfadt catted X-pipe (you can get the matching X-pipe with cats or without cats).
The ends of the X-pipe will attach perfectly to your existing NPP over the axle muffler system (nothing else needed to buy).
If you have a base Corvette, or a GS, make sure you order the X-pipe made for the Base or GS car. This X-pipe will have the 2.5" diameter ends on the X-pipe that matches up with the 2.5" diameter inlet pipes on your existing muffler system.
However, if you have a Z06, you need to order the X-pipe made for the Z06. The ends of the X-pipes expand out to 3" so as to attach to the larger 3" inlet pipes on the end of the Z06's muffler system.
Nothing to it .....
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Race Director
Joined: Feb 2013
Posts: 12,687
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From: Nazareth, PA.
St. Jude Donor '17
As far as I know you CAN keep your NPP AND have headers with cats, which is the only way I will/would do it. All that you need is for the X pipe to have a 2.5" exit so that it matches up with your stock exhaust.
The ones you are dealing with just needs the correct cats & X pipe, but I'm no expert.
Your Vette I believe has 4 cats (2012 and later) so you would wind up with just 2, whereas the 2011 only has 2 to begin with.
I'm sure someone more knowledgeable will chime in.
This is why I asked when Hinson would offer a complete package
Good luck Buddy
NSF
The ones you are dealing with just needs the correct cats & X pipe, but I'm no expert.
Your Vette I believe has 4 cats (2012 and later) so you would wind up with just 2, whereas the 2011 only has 2 to begin with.
I'm sure someone more knowledgeable will chime in.
This is why I asked when Hinson would offer a complete package
Good luck Buddy
NSF
Drifting
Joined: Apr 2011
Posts: 1,540
Likes: 79
From: Houston, Tx
St. Jude Donor '11-'12-'13-'14
NSF, I know nothing about headers so I have no clue where I'm going. seriously, not being mechanically inclined I have a shop here in my area that does whatever I need done on my car. All I know is that I'm thinking of putting a set of headers on my car and I WANT TO KEEP my npp exahaust. If that means going without the "cats" that's fine. Let me ask you, if you were going with headers, what approach would you take?
seriously, not being mechanically inclined I have a shop here in my area that does whatever I need done on my car. All I know is that I'm thinking of putting a set of headers on my car and I WANT TO KEEP my npp exahaust. If that means going without the "cats" that's fine. Let me ask you, if you were going with headers, what approach would you take?
Drifting
Joined: Apr 2011
Posts: 1,540
Likes: 79
From: Houston, Tx
St. Jude Donor '11-'12-'13-'14
Race Director
Joined: Feb 2013
Posts: 12,687
Likes: 224
From: Nazareth, PA.
St. Jude Donor '17
Drifting
Joined: Apr 2011
Posts: 1,540
Likes: 79
From: Houston, Tx
St. Jude Donor '11-'12-'13-'14
Race Director
Joined: Feb 2013
Posts: 12,687
Likes: 224
From: Nazareth, PA.
St. Jude Donor '17
Pro
Joined: Aug 2015
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From: Katy TX
A tune is best to optimize the headers. Also an intake is recommended in conjunction with the headers/exhaust.
More air in and more air out changes things a little.
But to answer your question, headers installed without a tune won't damage or harm a thing, but you will be missing out on performance.
More air in and more air out changes things a little.
But to answer your question, headers installed without a tune won't damage or harm a thing, but you will be missing out on performance.
Race Director
Joined: Feb 2013
Posts: 12,687
Likes: 224
From: Nazareth, PA.
St. Jude Donor '17
A tune is best to optimize the headers. Also an intake is recommended in conjunction with the headers/exhaust.
More air in and more air out changes things a little.
But to answer your question, headers installed without a tune won't damage or harm a thing, but you will be missing out on performance.
More air in and more air out changes things a little.
But to answer your question, headers installed without a tune won't damage or harm a thing, but you will be missing out on performance.
Le Mans Master
Joined: Sep 2014
Posts: 7,001
Likes: 988
From: lake havasu city arizona
A tune is best to optimize the headers. Also an intake is recommended in conjunction with the headers/exhaust.
More air in and more air out changes things a little.
But to answer your question, headers installed without a tune won't damage or harm a thing, but you will be missing out on performance.
More air in and more air out changes things a little.
But to answer your question, headers installed without a tune won't damage or harm a thing, but you will be missing out on performance.
If I do headers AND cats I will still get a before and after tune on a dyno to know just what I spent all that money on
NSF
Race Director
Joined: Mar 2011
Posts: 13,262
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From: SW Florida
2021 C6 of the Year Finalist - Modified
Yup ... The OEM air filter on the LS3 is the same as is on the LS7 / Z06 engine.
If this filter will supply enough air for a 505 HP LS7 engine, don't you think it will also supply enough air for your 436 HP LS3?
____________________________
As far as a dyno tune after installing headers .... You will be missing RWHP if you don't.
If this filter will supply enough air for a 505 HP LS7 engine, don't you think it will also supply enough air for your 436 HP LS3?
____________________________
As far as a dyno tune after installing headers .... You will be missing RWHP if you don't.