Inside the Dual Mode Exhaust Muffler - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

domano 68 · 03-25-2016, 10:28 AM

Looking for an inside view of a dual mode exhaust muffler. I want to see what actually is going on when either mode occurs. Wondering if anyone has actually cut these open to see. No luck finding a picture or video yet. Thanks in advance.

Chris1SS1LE · 03-25-2016, 02:28 PM

Saw a pic drawing of one, Basically it comes in and has two routes one goes straight with tiny holes perforated and out to the valve. The other tube Y's off and goes at angle thru fiberglass to the other exit point just like a normal muffler. When the valve is open your straightpipe except the perforated holes and possible some chambered crimps. If you didn't do a NPP you could always put cutouts before the muffler and dump straight down and get the same effect, but much louder. A friend with his mustang does this and the cutouts only open at WOT.

hcsi99 · 03-25-2016, 03:30 PM

I has the Google Power!
https://www.google.com/search?q=GM+D...cBAnuS4HPDM%3A

domano 68 · 03-25-2016, 09:42 PM

Cool, thanks. I searched "cross section". Cut away is a better term to use. Thanks.

760bowtie · 03-25-2016, 11:38 PM

Probably not exactly what you're looking for but here's my video of the flaps opening and closing.

http://youtu.be/QpZe-cVp1yU

Dubscamaro · 03-26-2016, 05:03 PM

http://www.camaro5.com/forums/showthread.php?t=180813

markgws6 · 03-30-2016, 12:32 PM

Quote:

Originally Posted by Dubscamaro

http://www.camaro5.com/forums/showthread.php?t=180813

Thanks! This was an interesting read for sure. So the valves open are not quite "straight through"...

03-25-2016, 10:28 AM	#1
domano 68 Drives: 2014 1LE Join Date: Sep 2008 Location: SE Posts: 627 View My Garage	Inside the Dual Mode Exhaust Muffler Looking for an inside view of a dual mode exhaust muffler. I want to see what actually is going on when either mode occurs. Wondering if anyone has actually cut these open to see. No luck finding a picture or video yet. Thanks in advance. __________________

03-25-2016, 03:30 PM	#3
hcsi99 Cadillac Service Manager Drives: 2014 Camaro 1SS, 1LE, NPP, RECAROS Join Date: Jun 2013 Location: Indiana Posts: 672 View My Garage	I has the Google Power! https://www.google.com/search?q=GM+D...cBAnuS4HPDM%3A __________________

03-25-2016, 09:42 PM	#4
domano 68 Drives: 2014 1LE Join Date: Sep 2008 Location: SE Posts: 627 View My Garage	Cool, thanks. I searched "cross section". Cut away is a better term to use. Thanks. __________________

03-25-2016, 11:38 PM	#5
760bowtie Drives: 2014 1SS/RS, 2018 Silverado CC Join Date: Apr 2014 Location: Oceanside, CA Posts: 1,487	Probably not exactly what you're looking for but here's my video of the flaps opening and closing. http://youtu.be/QpZe-cVp1yU __________________ AGP 57/57 turbos and Dual Pump System, NA Cam, McLeod RXT clutch, MGW shifter, ZL1 Rear End, BMR Trailing Arms/Toe Rods, Pegasus Solid Cradle Bushings 10.7 @140mph M6

03-26-2016, 05:03 PM	#6
Dubscamaro Living Life in MPH. Drives: 15 Summit White 2SS 1LE Join Date: Dec 2013 Location: Arizona Posts: 1,114 View My Garage	http://www.camaro5.com/forums/showthread.php?t=180813 __________________ Devon W.

03-25-2016, 02:28 PM	#2
Chris1SS1LE Drives: 2014 Camaro Red Hot 1LE NPP Recaro Join Date: Jun 2014 Location: Indiana Posts: 639	Saw a pic drawing of one, Basically it comes in and has two routes one goes straight with tiny holes perforated and out to the valve. The other tube Y's off and goes at angle thru fiberglass to the other exit point just like a normal muffler. When the valve is open your straightpipe except the perforated holes and possible some chambered crimps. If you didn't do a NPP you could always put cutouts before the muffler and dump straight down and get the same effect, but much louder. A friend with his mustang does this and the cutouts only open at WOT.