Z06 muffler mod question???
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Joined: Nov 2007
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From: Phoenix AZ
Z06 muffler mod question???
Hey all, I'm thinking of having the muffler mod done on my Z06 mufflers to make them louder, the question is does it make it louder only when the butterflies are open, or all the time? And how much louder does it make them, I've heard 25%?
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From: Phoenix AZ
Pro
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From: Bakersfield Ca.
Z06 Modified Mufflers
http://www.youtube.com/watch?v=lKFQa0cWcIY
Watch this You tube video to see a complete demo
Watch this You tube video to see a complete demo
Team Owner
Joined: Aug 2007
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From: I live my life by 2 rules. 1) Never share everything you know. 2)
St. Jude Donor '11-'12-'13, '16-'17-'18
I have a set of Z06 pulloffs coming for my '07 and I plan on doing the mod, including pulling the glass pack from it.
I suspect it is going to be louder on both the butterflies open and closed sides but I'll let ya know (gonna be around 2 weeks however before I get the mod done and get them installed)
By the way, the OP is talking about this type of mod (there are a couple ways to do it but the result is the same)
http://forums.corvetteforum.com/c6-z...6-muffler.html
I suspect it is going to be louder on both the butterflies open and closed sides but I'll let ya know (gonna be around 2 weeks however before I get the mod done and get them installed)
By the way, the OP is talking about this type of mod (there are a couple ways to do it but the result is the same)
http://forums.corvetteforum.com/c6-z...6-muffler.html
Last edited by KenHorse; Jan 12, 2009 at 08:37 PM.
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Pro
Joined: Sep 2004
Posts: 624
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From: Bakersfield Ca.
I have a set of Z06 pulloffs coming for my '07 and I plan on doing the mod, including pulling the glass pack from it.
I suspect it is going to be louder on both the butterflies open and closed sides but I'll let ya know (gonna be around 2 weeks however before I get the mod done and get them installed)
By the way, the OP is talking about this type of mod (there are a couple ways to do it but the result is the same)
http://forums.corvetteforum.com/c6-z...6-muffler.html
I suspect it is going to be louder on both the butterflies open and closed sides but I'll let ya know (gonna be around 2 weeks however before I get the mod done and get them installed)
By the way, the OP is talking about this type of mod (there are a couple ways to do it but the result is the same)
http://forums.corvetteforum.com/c6-z...6-muffler.html
Pro
Joined: Sep 2004
Posts: 624
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From: Bakersfield Ca.
Once the pipe is welded shut the glass packing really doesn't have much affect, plus the NPP's have perforated exhaust tips which makes a little different tone. I would prefer the NPP's but the modded Z06 mufflers are cheaper
Melting Slicks
Joined: Dec 2006
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St. Jude Donor '13
The Z06's that have the mod and the NPP's sound pretty much identical. I have ran both on my car and really couldnt tell much difference between the two ( modded Z06's vs NPP's) . I currently have the modded Z06's one my car.Now the B&B Fusions on the other hand, they are louder all the way around, open and closed. Much louder than the NPP or Z06 with the mod.
Ben
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Joined: Jul 2008
Posts: 644
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From: Edmond Oklahoma
The Z06's that have the mod and the NPP's sound pretty much identical. I have ran both on my car and really couldnt tell much difference between the two ( modded Z06's vs NPP's) . I currently have the modded Z06's one my car.Now the B&B Fusions on the other hand, they are louder all the way around, open and closed. Much louder than the NPP or Z06 with the mod.
Ben
Burning Brakes
Joined: Jul 2004
Posts: 979
Likes: 23
From: Bakersfield CA
At the Valley Vettes GTG yesterday I heard the muffler mod with the M2W which is definitely louder, but if you want a deep muscle car sound this just won't do it.
The best sounding Z06 I've heard was in October at the Laguna Seca ALMS race weekend when I was Dick Guldstrand's passenger in a parade lap. His Katech engined 427 with headers and Flowmaster mufflers sounded fantastic, much deeper than mine with its Bullets or a Katech Z with Corsas that I've heard at this GTG.
Joel
The best sounding Z06 I've heard was in October at the Laguna Seca ALMS race weekend when I was Dick Guldstrand's passenger in a parade lap. His Katech engined 427 with headers and Flowmaster mufflers sounded fantastic, much deeper than mine with its Bullets or a Katech Z with Corsas that I've heard at this GTG.
Joel
Melting Slicks
Joined: May 2008
Posts: 2,121
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From: CT
I did the mod. Sounds great i think. Idle is more crisp and you can hear the cam alittle more and on throttle it sounds much different and better. I like it all around. for the money cant beat it. Definately recommend it to anyone!