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Team Owner
Joined: Jul 2004
Posts: 28,474
Likes: 3,291
From: Hartford WI
Burning Brakes
Joined: May 2022
Posts: 750
Likes: 137
From: Texas
2025 C7 of the Year Finalist - Modified
All the personal experience I’ve had has been with ARH. I’ve heard Kooks are an easier fit but ARH yields the most gains. I’ve seen people mention LG and spoke highly on them. I don’t think you can go wrong with any of those three but I’d steer clear of Texas Speed headers imo.
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Race Director
Joined: Sep 2007
Posts: 16,557
Likes: 2,108
From: Peoria/Phoenix AZ
C6 of Year Finalist (performance mods) 2019
Race Director
Joined: Sep 2007
Posts: 16,557
Likes: 2,108
From: Peoria/Phoenix AZ
C6 of Year Finalist (performance mods) 2019
Race Director
Joined: Jul 2018
Posts: 10,592
Likes: 8,416
From: San Antonio, TX/Mahopac, NY
2026 Restomod of the Year Winner
2024 Corvette of the Year Finalist - Modified
2024 Corvette of the Year Finalist - Unmodified
2023 C7 of the Year Winner - Modified
I have 2” on my ZR1 pushing 1100hp. Without port work on the SC and heads and a more aggressive cam and fueling, 1 7/8” will be more than enough.
Race Director
Joined: Sep 2007
Posts: 16,557
Likes: 2,108
From: Peoria/Phoenix AZ
C6 of Year Finalist (performance mods) 2019
You left out the most important part of that quote. It should be "Some is good, more is better, and too much is just right".
Race Director
Joined: Jul 2018
Posts: 10,592
Likes: 8,416
From: San Antonio, TX/Mahopac, NY
2026 Restomod of the Year Winner
2024 Corvette of the Year Finalist - Modified
2024 Corvette of the Year Finalist - Unmodified
2023 C7 of the Year Winner - Modified
Most of us operate under 5000rpm running around the street. If that is you, then yes as peak hp/Tq will move up the rpm band and the lack of a bit of back pressure will limit scavenging of exhaust gases. That said, track days and the ability to make future flow improvements are preserved, plus I don’t think you will really feel the difference.
Team Owner
Joined: Jul 2004
Posts: 28,474
Likes: 3,291
From: Hartford WI
Depends on how big your wallet is for this sort of spending. It takes cubic dollars to go fast. If you don't care, you might as well talk to a reputable builder and have them build out the level you want.