mufflers
Thread Starter
Melting Slicks
Joined: Jul 2007
Posts: 2,146
Likes: 31
From: Minot North Dakota
St. Jude Donor '12-'13-'14-'15, '21
mufflers
This may sound dumb but I’m not a mechanic so I’m just throwing this out there. I’d like different mufflers for my 2013 427 vette, I don’t need x pipes or an entire system. I have NPP exhaust and want to keep it. Everywhere I look they want $1,500.00-$2,000.00 for an exhaust system. Can I just cut the mufflers off before the NPP system and just before the pipes enter the mufflers and weld new ones in place of the old. If this is feasible who sells just the mufflers. Any help would be appreciated
Race Director
Joined: Jan 2011
Posts: 11,973
Likes: 463
From: Tonawanda New York
Why do you want to get rid of your NPP mufflers by cutting them off? I love my NPP set up. It's one of the reasons I wanted it on my GS so I didn't have to spend extra money on an aftermarket system.
Instructor
Joined: Oct 2013
Posts: 168
Likes: 0
Advanced
Joined: Nov 2009
Posts: 87
Likes: 2
From: Missouri City Texas
Hi Garye !!! I also have a 2013 427 with the NNP Exhaust. I just ordered a switch package called Mild to Wild Exhaust Control At Topflight Reproductions ( www.topflightrepro.com ) It provides a Fob that lets you switch back and forth between the NNP Exhaust functions. Instructions look easy it plugs into the fuse panel . I will post results once I receive and install it .
Retired & lovin' it!
Joined: Mar 2005
Posts: 4,474
Likes: 547
From: Jackson NJ
This may sound dumb but I’m not a mechanic so I’m just throwing this out there. I’d like different mufflers for my 2013 427 vette, I don’t need x pipes or an entire system. I have NPP exhaust and want to keep it. Everywhere I look they want $1,500.00-$2,000.00 for an exhaust system. Can I just cut the mufflers off before the NPP system and just before the pipes enter the mufflers and weld new ones in place of the old. If this is feasible who sells just the mufflers. Any help would be appreciated
Pro
Joined: Feb 2005
Posts: 627
Likes: 5
From: Frisco TX
I think he wants to install new mufflers and then attach the old tips (with the butterfly valves, etc.) onto the new mufflers. I don't see why it wouldn't work. Would have to a muffler that has 4 outputs I would think.
Drifting
Joined: Jul 2011
Posts: 1,258
Likes: 99
From: O'Fallon Illinois - Currently own a 2016 Z06 1LZ A8 Coupe
Hi Garye !!! I also have a 2013 427 with the NNP Exhaust. I just ordered a switch package called Mild to Wild Exhaust Control At Topflight Reproductions ( www.topflightrepro.com ) It provides a Fob that lets you switch back and forth between the NNP Exhaust functions. Instructions look easy it plugs into the fuse panel . I will post results once I receive and install it .
I have the Mild to Wild on mine. Best MOD ever. Took all of 5-8 mins to install.
MT
Advanced
Joined: Nov 2009
Posts: 87
Likes: 2
From: Missouri City Texas
Hi MTsVette Glad to hear you like the Mild to Wild exhaust control and that it is easy to install. Does the exhaust maintain the stock performance and open at 3500 RPM or does it operate (open ) only with the switch ?
Thanks
Ed
Thanks
Ed
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Pro
Joined: Aug 2011
Posts: 729
Likes: 32
To answer your question you can not cut and install a different muffler. The NPP system is in the muffler and works as a bypass. Why not pull the fuse and keep them open all the time. I think you would be very pleased with the sound.
Race Director
Joined: Mar 2010
Posts: 16,873
Likes: 5,329
From: T-Town WA
2016 C6 of Year Finalist
http://img.photobucket.com/albums/v6...s/100_8093.jpg
NPP exhaust is virtually straight through exhaust.
NPP exhaust is virtually straight through exhaust.
Le Mans Master
Joined: Apr 2005
Posts: 6,277
Likes: 72
From: Boston's south shore MA
One of our vettes is a 427 vert with the NPP and mild to wild fob. We leave it open all of the time for the loudest sound. I like it just as much as the Corsa Xtreme exhaust on our other one.
Race Director
Joined: Mar 2010
Posts: 16,873
Likes: 5,329
From: T-Town WA
2016 C6 of Year Finalist
In a stock system all the exhaust goes through the muffler. NPP has all the exhaust go through the muffler when the valves are closed. When the valves are open the exhaust goes through the non muffled portion of the muffler.
Race Director
Joined: Apr 2000
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From: Texas