Header size needed...
Team Owner
Joined: Jul 2004
Posts: 28,332
Likes: 3,246
From: Hartford WI
Pro
Joined: May 2022
Posts: 739
Likes: 133
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.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
2027 Corvette vs The World: Every Model vs Closest Competitor
Joe Kucinski
10 Most Common Corvette Problems of the Last 20 Years!
Joe Kucinski
5 MOST and 5 LEAST Popular Corvette Model Years in History!
Joe Kucinski
2027 Corvette Buyer's Guide: Everything You Need to Know!
Joe Kucinski
10 Things C8 Corvette Owners Hate (But Won't Tell You)
Joe Kucinski
10 Best Corvettes Coming to Barrett-Jackson Palm Beach 2026!
Brett Foote
Every Corvette Grand Sport Explained! (C2, C4, C6, C7, & C8)
Joe Kucinski
Grand Sport & Grand Sport X Launch Alongside All-New 535hp LS6 V8!
Michael S. Palmer
5 Reasons Bad Drivers Crash & 5 Ways to Avoid a Costly Mistake!
Joe Kucinski
Race Director
Joined: Sep 2007
Posts: 16,557
Likes: 2,104
From: Peoria/Phoenix AZ
C6 of Year Finalist (performance mods) 2019
Race Director
Joined: Sep 2007
Posts: 16,557
Likes: 2,104
From: Peoria/Phoenix AZ
C6 of Year Finalist (performance mods) 2019
Race Director
Joined: Jul 2018
Posts: 10,464
Likes: 8,130
From: San Antonio, TX/Mahopac, NY
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: 2,104
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: 10,464
Likes: 8,130
From: San Antonio, TX/Mahopac, NY
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: 28,332
Likes: 3,246
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.