High flow muffler vs droan
Thread Starter
Instructor
Joined: Nov 2008
Posts: 114
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High flow muffler vs droan
Hi All,
I recently purchased a 98 Convertable and I want to open the back end up but I don't want that awful droan especially since it is a Vert but I need the FLOW. Any suggestions out there??
Thanks in advance.
I recently purchased a 98 Convertable and I want to open the back end up but I don't want that awful droan especially since it is a Vert but I need the FLOW. Any suggestions out there??
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
The ONLY two mufflers/exhaust systems that I have expierenced that will NOT produced DRONE are the OEM ZO6 Ti mufflers and Stainlessworks system.
I had the Ti's on my 98 coupe and they were a bit louder (nothing significant ) but had ZERO DRONE and they do flow very well.
I have a complete Stainless works system on my 02 ZO6. From the headers to the mufflers. Its a 3" exhaust system with X pipe & high flow cats and with a vararam and headers I had NO DRONE.
When I added a big cam and high flow heads, the sound level increased a lot but the drone is very tollerable. Some say,,, "You dont have any drone!!! Its there but just barely!
BC
I had the Ti's on my 98 coupe and they were a bit louder (nothing significant ) but had ZERO DRONE and they do flow very well.
I have a complete Stainless works system on my 02 ZO6. From the headers to the mufflers. Its a 3" exhaust system with X pipe & high flow cats and with a vararam and headers I had NO DRONE.
When I added a big cam and high flow heads, the sound level increased a lot but the drone is very tollerable. Some say,,, "You dont have any drone!!! Its there but just barely!
BC
Le Mans Master
Joined: Nov 2009
Posts: 6,882
Likes: 234
From: Bangkok, Thailand
Burning Brakes
Joined: Oct 2004
Posts: 931
Likes: 35
From: Rowlett, Texas
Be pretty careful with the '98. The early C5's didn't have the 4 cats, and are thus a bit more susceptable to the drone. It is worst at exactly 70 MPH in 6th gear. I have a full stock Z06 system on my 2000 and it actually drones just a bit at 70 when going up an incline.
Basically, it seems that if you want a throaty idle, then you get droan.
Do a search here, think about an Xpipe also. Seems the system most famous for droanlessness is Corsa. But, not very sexy idle either.
Why do Camaros and Mustangs sound so good, and Vettes droan like crazy when you try to duplicate that low rpm sound.
You'll get 100 opinions
DG
Basically, it seems that if you want a throaty idle, then you get droan.
Do a search here, think about an Xpipe also. Seems the system most famous for droanlessness is Corsa. But, not very sexy idle either.
Why do Camaros and Mustangs sound so good, and Vettes droan like crazy when you try to duplicate that low rpm sound.
You'll get 100 opinions
DG
Le Mans Master
Joined: May 2006
Posts: 7,835
Likes: 225
From: Hillsboro OR
Be pretty careful with the '98. The early C5's didn't have the 4 cats, and are thus a bit more susceptable to the drone. It is worst at exactly 70 MPH in 6th gear. I have a full stock Z06 system on my 2000 and it actually drones just a bit at 70 when going up an incline.
Basically, it seems that if you want a throaty idle, then you get droan.
Do a search here, think about an Xpipe also. Seems the system most famous for droanlessness is Corsa. But, not very sexy idle either.
Why do Camaros and Mustangs sound so good, and Vettes droan like crazy when you try to duplicate that low rpm sound.
You'll get 100 opinions
DG
Basically, it seems that if you want a throaty idle, then you get droan.
Do a search here, think about an Xpipe also. Seems the system most famous for droanlessness is Corsa. But, not very sexy idle either.
Why do Camaros and Mustangs sound so good, and Vettes droan like crazy when you try to duplicate that low rpm sound.
You'll get 100 opinions
DG
Burning Brakes
Joined: Mar 2010
Posts: 1,189
Likes: 4
From: Freeport, FL
If you want something quieter though, get a cat-back that uses a straight through 'glass-packed resonator style muffler to minimize drone.
Chamber type mufflers are notorious for resonance.
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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
HA!! That brings a very good post to the light! Here is what is inside your C5 ZO6 Ti muffler:
See the POST below:
- C5 WHAT THE HELL IS INSIDE MY TI MUFFLERS?? http://forums.corvetteforum.com/c5-g...6-muffler.html
See the POST below:
- C5 WHAT THE HELL IS INSIDE MY TI MUFFLERS?? http://forums.corvetteforum.com/c5-g...6-muffler.html
Burning Brakes
Joined: Jun 2010
Posts: 812
Likes: 2
From: Metairie Louisiana
Hard to know what you want verses what you need. You said "I really need the flow", does this mean you have modded to a point where the stock mufflers are really holding you back or you feel that the stock mufflers are the first place you want to improve performance? Other modifications (cam , headers, cat delete) will contribute to how the catback will react. The Ti's aren't loud but are a bit more noticeable than the stockers, no drone and will keep up with other hp mods. They are usually a good choice unless an increase in sound is the main goal.
Race Director
Joined: Sep 2005
Posts: 11,060
Likes: 291
From: Pasco WA
Hard to know what you want verses what you need. You said "I really need the flow", does this mean you have modded to a point where the stock mufflers are really holding you back or you feel that the stock mufflers are the first place you want to improve performance? Other modifications (cam , headers, cat delete) will contribute to how the catback will react. The Ti's aren't loud but are a bit more noticeable than the stockers, no drone and will keep up with other hp mods. They are usually a good choice unless an increase in sound is the main goal.
If you're goal is increased performance, a catback is a sorry place to start. Catbacks only make it sound better. My favorite for sound is GHLs, and owners say they don't drone. I have a heavily modded motor, and Pace Cars. They aren't quiet anywhere but cruise speed. I prefer GHLs, but bought the Pace Cars because of the Daytona tips, and they were on sale for half price. Stay away from Magnaflows for the drone issue. Beautiful sounding/looking catback, but it does have resonance.
Pro
Joined: Jun 2002
Posts: 726
Likes: 45
From: Marquette MI
Corsa Pace Car cat backs do not drone but sound nice and aggressive when you get on the throttle. I have Stainless Works LTHs an X pipe and Corsa Pace Car cat backs. Quiet at cruise, loud when you step on it and no drone.
Race Director
Joined: Sep 2005
Posts: 11,060
Likes: 291
From: Pasco WA
The Magnaflow is a great catback, but it will have the low RPM resonance under load. I bought mine used, and then resold it for more than I paid. Great looking and durable. Honestly, I'd still have it, but I wanted the two large oval tip style. And the Magnaflow is pretty quiet, even with mods.
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