Cat backs W/ little or no resonance?
Thread Starter
Le Mans Master
Joined: Jun 2002
Posts: 9,220
Likes: 17
From: San Diego California
Cat backs W/ little or no resonance?
I just purchased my first vette, an 04 MN6. The stock exhaust system is too quiet. I will be putting a cat-back on eventually. There are so many to choose from. I occasionally go on 8 hour long trips. I want a system that has no or limited resonance/drone at highway speeds. Which cat-back exhaust systems have little or no resonance.
I assume resonance and drone are the same thing.
Thanks in advance.
I assume resonance and drone are the same thing.
Thanks in advance.
Team Owner
Joined: Jul 2004
Posts: 30,045
Likes: 4
From: Danville Virginia
Resident moron
Joined: Jun 2003
Posts: 4,746
Likes: 20
From: Assachusetts
Corsa is indeed pretty good in regards to resonance. Honestly the actual sound isn't for everyone. I would listen to some systems before you decide - I couldn't stand my Corsa Indys myself (came with the car) so I sold them. Now I have open cutouts - much better 
Dope
Dope
Racer
Joined: Aug 2005
Posts: 361
Likes: 1
From: Montara Ca
Z06 titanium catbacks. 
You can usually find them in the parts section for $400 - $450.
Nice and quite at low RPM or highway cruising speed but once you go WOT they scream. I run mine with LG’s Street long tubes and have no resonance at any speed at all.
You can usually find them in the parts section for $400 - $450.
Nice and quite at low RPM or highway cruising speed but once you go WOT they scream. I run mine with LG’s Street long tubes and have no resonance at any speed at all.
Le Mans Master
Joined: Dec 2000
Posts: 9,918
Likes: 1,880
From: Hot Springs AR
Sound is utterly subjective, but every system has a resonance at some rpm. Some the drone is fairly quiet (OEM), the Z06 is a bit louder through its resonance, and so it goes.
You really, *really*, need to find someone with an aftermarket system that you can listen to on the road.
HTH, and have a good one,
Mike
You really, *really*, need to find someone with an aftermarket system that you can listen to on the road.
HTH, and have a good one,
Mike
Burning Brakes
Joined: Feb 2005
Posts: 752
Likes: 1
From: Tulsa OK
Corsa
No drone or resonance.
That said, not all catbacks sound the same and resonance might not be a bad thing if you like the sound.
Personally, I am very pleased with my Corsa Touring set up. Sounds good at idle, awesome at WOT and there is never any annoying drone.
I rented a Mustang this weekend and it seemed like Ford tried to build some "sound" into the exhaust. The car was a dog and I got sick of listening to this constant drone and it was only a single exhaust.
Better lsiten to some different cars and buy something you like.
No drone or resonance.
That said, not all catbacks sound the same and resonance might not be a bad thing if you like the sound.
Personally, I am very pleased with my Corsa Touring set up. Sounds good at idle, awesome at WOT and there is never any annoying drone.
I rented a Mustang this weekend and it seemed like Ford tried to build some "sound" into the exhaust. The car was a dog and I got sick of listening to this constant drone and it was only a single exhaust.
Better lsiten to some different cars and buy something you like.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Every 2027 Corvette Engine Explained
Joe Kucinski
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette
Verdad Gallardo
10 Ugly Corvettes That We Still Kinda Love
Joe Kucinski
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
Safety Car
Joined: Sep 2003
Posts: 3,692
Likes: 5
From: Hayward CA
Sound is utterly subjective, but every system has a resonance at some rpm. Some the drone is fairly quiet (OEM), the Z06 is a bit louder through its resonance, and so it goes.
You really, *really*, need to find someone with an aftermarket system that you can listen to on the road.
HTH, and have a good one,
Mike
You really, *really*, need to find someone with an aftermarket system that you can listen to on the road.
HTH, and have a good one,
Mike
I have Corsa Indy's and they do have resonance...... but it's higher up in the RPM band (2500-3000rpm). At 1500-2000 (freeway rpm) there is no resonance, so they tend to be quite pleasant. But as soon as you put your foot into it..... they scream
Le Mans Master
Joined: May 2006
Posts: 7,885
Likes: 259
From: Hillsboro OR
Instructor
Joined: Jan 2007
Posts: 157
Likes: 0
From: Austin TX
Got Corsa pacecar, i didnt like the sound at first, thought it was to soft.....I grew in to them and wouldnt have anything else on there, well maybe some Indy's but pretty much the same difference
Thread Starter
Le Mans Master
Joined: Jun 2002
Posts: 9,220
Likes: 17
From: San Diego California
Wow, lots of positive comments on Corsa. I heard a awesome sound at WOT from a C6 last weekend with Corsa mufflers. They have a big following in the corvette community (I had a Z28 until last month)
I was wondering if anyone had any comments about Magnaflow?
Great responses everyone. Please keep them coming.
I was wondering if anyone had any comments about Magnaflow?
Great responses everyone. Please keep them coming.
Race Director
Joined: Jun 2004
Posts: 19,459
Likes: 48
From: Schaumburg IL
CI 7-8-9-11 Veteran
St. Jude Donor '06-'10, '13
The Corsa's, Z06 stock TI exhaust, or the BB PRT's (but if you add headers the the PRT's they will drone a bit) are all good..or the BB RTE 66 system.
Drifting
Joined: May 2000
Posts: 1,769
Likes: 147
From: Penfield NY
I just purchased my first vette, an 04 MN6. The stock exhaust system is too quiet. I will be putting a cat-back on eventually. There are so many to choose from. I occasionally go on 8 hour long trips. I want a system that has no or limited resonance/drone at highway speeds. Which cat-back exhaust systems have little or no resonance.
I assume resonance and drone are the same thing.
Thanks in advance.
I assume resonance and drone are the same thing.
Thanks in advance.
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
On the other hand,,,, I have expierenced the GHL maginum system an WOW! Its something that I would highly recommend!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! I would have to agree with SDLS1Rider!! EXCELLENT SYSTEM with NO drone!
BC
Burning Brakes
Joined: Oct 2005
Posts: 929
Likes: 1
From: Norman Oklahoma
I have Corsa Pace and they are great, your gas milage will go down
.
Race Director
Joined: Sep 2005
Posts: 11,060
Likes: 291
From: Pasco WA
Another vote for Corsas. The Pace car version was too loud with my mods, until I added cats, now they're nice. Louder than the Magnaflows, and yet quieter at cruise. Weird combo. I've also had stock Tis, and Borla Stingers, the latter having much resonance. If you plan on keeping the rest of the exhaust stock, get the Pace car version.
