Headers, x-pipe with stock axel back?
Thread Starter
Race Director
Joined: Oct 2001
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From: Canton GA
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St. Jude Donor '03-'05-'06-'10-'11-'12
Headers, x-pipe with stock axle back?
I haven't even had this car for a month and I'm missing that exhaust note I had on my Z.
2014 Z51 M7 NPP and stock (for now), I'm looking to install headers, cats and x-pipe but keep the stock mufflers. If you've gone this route, what's your opinion? Worth it?
2014 Z51 M7 NPP and stock (for now), I'm looking to install headers, cats and x-pipe but keep the stock mufflers. If you've gone this route, what's your opinion? Worth it?
Last edited by ShawnZR-1; Nov 3, 2022 at 03:10 PM.
Burning Brakes
Joined: Oct 2014
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I have 2” ARH long tube headers with O/R cats and stock NPP mufflers. It is plenty loud with the exhaust valves open and quite aggressive sounding with them closed. But I have a built motor. I think you’ll be pleased with the results.
I would also stash that original exhaust in the attic or basement. Something makes me think this world is gonna be a lot different some day.
I would also stash that original exhaust in the attic or basement. Something makes me think this world is gonna be a lot different some day.
Le Mans Master
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From: Stafford Springs CT
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I'll be going that route. I heard another C7 GS with long tube, hi flow catted x pipe with stock NPP and it sounded amazing.
Thread Starter
Race Director
Joined: Oct 2001
Posts: 12,832
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From: Canton GA
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St. Jude Donor '03-'05-'06-'10-'11-'12
Thanks all! Looks like I'll be placing an order today then! I'll try to get before and after sound clips.
Pro
Joined: Aug 2017
Posts: 564
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From: NOVA
I also have ARH long tube headers with hi flow cats and stock NPP mufflers. I was absolutely floored at how aggressive the sound is just installing the ARH LTs and X-pipe... first time my wife rode with me she exclaimed, "You're going to jail!" I don't know if her reaction was centered on the A&A boosted acceleration or the exhaust note, but either way, I'm really pleased.
I used to tell people Corvette's are aurally angry, but mine is menacingly vengeful... bwahaha!
I used to tell people Corvette's are aurally angry, but mine is menacingly vengeful... bwahaha!
Thread Starter
Race Director
Joined: Oct 2001
Posts: 12,832
Likes: 209
From: Canton GA
Cruise-In III Veteran
Cruise-In IV Veteran
Cruise-In VI Veteran
St. Jude Donor '03-'05-'06-'10-'11-'12
I also have ARH long tube headers with hi flow cats and stock NPP mufflers. I was absolutely floored at how aggressive the sound is just installing the ARH LTs and X-pipe... first time my wife rode with me she exclaimed, "You're going to jail!" I don't know if her reaction was centered on the A&A boosted acceleration or the exhaust note, but either way, I'm really pleased.
I used to tell people Corvette's are aurally angry, but mine is menacingly vengeful... bwahaha!
I used to tell people Corvette's are aurally angry, but mine is menacingly vengeful... bwahaha!
Pro
Joined: Aug 2017
Posts: 564
Likes: 157
From: NOVA
Well, after a few pleasant mashes on the go peddle, I was glad to have NPP when a county cruiser pulled in behind me... switched over to Touring and pulled away from the light in near silence... all I could hear was the air escaping the BOV.
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Pro
Joined: Oct 2021
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From: Central TX
Before you change the mufflers just do your other mods. I think you'll be surprised at how good the stock mufflers sound with headers.
I did the full mod suite on my car and it sounds really good with the stock NPP exhaust. And it's LOUD at full song now.
I did the full mod suite on my car and it sounds really good with the stock NPP exhaust. And it's LOUD at full song now.
Burning Brakes
Joined: Oct 2014
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Tiny Dick Syndrome for those that need help with acronyms 🤪