Mildest catback for built car
Administrator
Joined: Mar 2001
Posts: 368,414
Likes: 24,800
From: In a parallel universe. Currently own 2014 Stingray Coupe.
C7 of the Year - Modified Finalist 2021
MO Events Coordinator
St. Jude Co-Organizer
St. Jude Donor '03 thru '26
NCM Sinkhole Donor
CI 5, 8 & 11 Veteran
Running Guns & Moonshine
Joined: Aug 2001
Posts: 12,676
Likes: 7,306
From: CT
I might -- we're in the process of finishing building our shore house/selling the house we're in, I may not make it to too many shows this year (and I actually usually bring my '67 when I do go). But if you want to hear it, happy to try and schedule something and meet somewhere.
FB dot com /ctshorelinecarsandcoffee
Drifting
Joined: Jul 2004
Posts: 1,680
Likes: 692
From: Pingree Grove IL
Leave it loud, show those ricer fart cans what a real exhaust sounds like every time you’re next to one. Especially when you’re first at the traffic light. Red line that thing on take off. Puts a grin on my face every time.
Thread Starter
Instructor
Joined: Oct 2022
Posts: 128
Likes: 22
From: Florida
With a spinal cord injury that causes severe migraines that is not an option. It sounds rowdy but just can't do it.
Race Director
Joined: Oct 2004
Posts: 12,864
Likes: 4,668
Not the Flowmasters I have! Mine are the C5 specific, $250 each, mufflers (in 2004 $$$) only, that I bought in 2004 or 2005. They sound great, but they drone at highway speeds. My tips are highly polished stainless, D shaped. I wouldn't classify mine as mild. IDK if Flowmaster even makes them anymore.. 
Zen Vet Master Level VII
Joined: Mar 2016
Posts: 5,218
Likes: 1,174
From: Southlake, TX
So, go with the TI
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
No Hostility Be Happy
Joined: Aug 2018
Posts: 10,082
Likes: 7,398
From: South Hill Wa
2022 C5 of the Year Finalist - Modified
2021 C5 of the Year Finalist - Modified
The magnaflow is reported to be so quiet that even if there is drone you can't even hear it lol.
Pro
Joined: Jul 2020
Posts: 556
Likes: 133
From: Texas
Not the Flowmasters I have! Mine are the C5 specific, $250 each, mufflers (in 2004 $$$) only, that I bought in 2004 or 2005. They sound great, but they drone at highway speeds. My tips are highly polished stainless, D shaped. I wouldn't classify mine as mild. IDK if Flowmaster even makes them anymore..
https://www.holley.com/products/exha...i/parts/817517
Moderator
Joined: Apr 2002
Posts: 11,776
Likes: 1,376
From: US
yup, I'm familiar with that -- there was one last sunday. I'll dm you if I get my lazy *** out to one.
Le Mans Master
Joined: Jun 2016
Posts: 5,440
Likes: 4,000
From: Cincinnati, OH
Pretty sure all Magnaflow mufflers are packed (not chambered like Flowmaster). If I had to guess for the C5 mufflers they are a simple U shaped internal perforated tube for the inlet/outlet on one end.
Le Mans Master
Joined: Feb 2021
Posts: 6,514
Likes: 4,362
From: Florida
2025 Corvette of the Year Finalist - Unmodified
2024 C5 of the Year Winner- Unmodified
2022 C5 of the Year Finalist - Unmodified
Not the Flowmasters I have! Mine are the C5 specific, $250 each, mufflers (in 2004 $$$) only, that I bought in 2004 or 2005. They sound great, but they drone at highway speeds. My tips are highly polished stainless, D shaped. I wouldn't classify mine as mild. IDK if Flowmaster even makes them anymore..
Running Guns & Moonshine
Joined: Aug 2001
Posts: 12,676
Likes: 7,306
From: CT
They also sell the mufflers individually, and they are still available. When I bought my car a couple years ago the cat backs were deafening. I had the Flowmasters installed and between those and some sound deadening, it’s normal conversation level. I don’t notice any drone cruising, but those mufflers roar when I lay the hammer down.
Le Mans Master
Joined: Feb 2021
Posts: 6,514
Likes: 4,362
From: Florida
2025 Corvette of the Year Finalist - Unmodified
2024 C5 of the Year Winner- Unmodified
2022 C5 of the Year Finalist - Unmodified
Racer
Joined: Nov 2005
Posts: 305
Likes: 50
Billy Boats are insane. Even on a stock engine they're too rowdy. I went from those to Corsa Sport on a C6 and it was much more tolerable.
If you have a good local muffler shop, have them slide some different options on so you can hear. My shop mocked up 4 sets of mufflers so I could hear all of them. I'm picky with sound and am glad I went that route.
If you have a good local muffler shop, have them slide some different options on so you can hear. My shop mocked up 4 sets of mufflers so I could hear all of them. I'm picky with sound and am glad I went that route.
Le Mans Master
Joined: Jun 2016
Posts: 5,440
Likes: 4,000
From: Cincinnati, OH
For those interested, Dynomax 17676 have the right configuration and size to fit well in a stock style catback if you splice them in.
https://www.dynomax.com/super-turbo-...same-side.html
https://www.dynomax.com/super-turbo-...same-side.html
Le Mans Master
Joined: Oct 2007
Posts: 9,702
Likes: 3,470
From: Akron Ohio
2025 Corvette of the Year Finalist - Modified
2024 C5 of the Year Winner - Modified
2023 C5 of the Year Finalist - Modified
2022 C5 of the Year Finalist - Modified
St. Jude Donor '09-'10-'11
