SS Muffler Choices - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Ravenvoyager · 09-12-2015, 06:39 PM

I was needing some advice. I have a 2010 SS that's been having some annoying issues with one of the mufflers. After researching the issue it looks like there could be a loose baffle inside the muffler. It sounds like a huge bee dodging along side the car at low RPMs. There's a TSB that addresses the issue but the car is out of its 3 year warranty. I'm wanting to go ahead and change out the mufflers and get a more aggressive tone out of the car without having to do an entire exhaust or header modification. I'm looking at the flow master 40's, 10's and Jones Bore but I'm not sure if I will be able to notice a difference since everything I've read so far says that most of the sound restrictions are prevented by the headers, cats and resonators. If I put on the 10's will it make a difference? Will it be loud or just nominal? I would cut out the mufers and run straight pipes but state law prohibits that alteration and were required to get yearly inspections. If anyone has any sound bytes of a stock system with just the muffler change out please share them. Thanks.

Zaproy · 09-12-2015, 06:44 PM

Slp loudmouth axle backs. They're supposed to be identical to a straight pipe.

Ravenvoyager · 09-12-2015, 06:57 PM

I agree with you Zaproy but our state law specifically says no muffler deletes allowed even though there are no laws restricting motorcycles noise levels.

ucHuskies · 09-12-2015, 07:03 PM

Do you have an L99 or an LS3? If l99, the big center resonator may count as a muffler. Check your states definition.

Zaproy · 09-12-2015, 07:30 PM

Quote:

Originally Posted by Ravenvoyager

I agree with you Zaproy but our state law specifically says no muffler deletes allowed even though there are no laws restricting motorcycles noise levels.

They're still mufflers though so it's not really a muffler delete. If it's the sound level that is not allowed try to pick up an npp catback or axle back and get npp in a box. You can switch from sounding like a straight pipe to sounding stock in a press of a button.

Ravenvoyager · 09-12-2015, 08:02 PM

Thanks for the suggestion UCHuskies. It's certainly worth looking into it. This state is very strict with inspections. I always anticipate some kind of issue when I pull in to get it looked over however I'm good until the end of Aug 2016 :-) I'll check into that. Zaproy, are you talking about the loudmouth axle back or loudmouth 2. I appreciate your alls input.

Ravenvoyager · 09-12-2015, 08:05 PM

Here's the state law: Every motor vehicle shall at all times be equipped with a muffler in good working order and in constant operation to prevent excessive or unusual noise. Such muffler shall be the muffler originally installed by the manufacturer of the vehicle or, if a replacement, the equivalent thereof. No person shall use a muffler cutout, bypass, or similar device upon a motor vehicle on a highway.

Zaproy · 09-12-2015, 08:14 PM

I was talking about the loudmouth 2, but DAMN that's harsh, I would definitely look into a used NPP exhaust with npp in a box. You can run with flaps open for that straight pipe sound and then close them to sound like stock when it's necessary. I know I'm definitely gonna try to get my hands on one after I get cammed.

Ravenvoyager · 09-12-2015, 08:53 PM

It sure is. I had to argue with the inspection stations about the phantom grille even though the State Police said that it's no different then their cruisers equipped with a push guard in front of their headlights. That NPP setup is pretty wicked. I'm going to look into that some more. Here's a YouTube in it if anyone's interested: http://youtu.be/Me-wOYpenbo Thanks Zaproy.

Zaproy · 09-12-2015, 09:01 PM

Yea no problem, the only drawback of the NPP is you have to wait for one to pop up in the classifieds. It's definitely worth the wait though.

USMC85 · 09-14-2015, 07:38 PM

I have the SLP Loudmouth 2s on my 2010 SS and I would also suggest adding the Summit X pipe and eliminate the resonators too. Initial I left the resonators on and I had a lot of drone at cruising speed. With the X-Pipe the car sounds better and less drone.

nosmr2 · 09-14-2015, 09:38 PM

My SLP loudmouth 2 with factory resonator on my L99 sounds good with no drone. It's really only gets loud when you get on it.

CamaroCracka · 09-15-2015, 02:29 PM

I get a little drone on my Loudmouth2s at 1900 so I just go a little faster.

Ravenvoyager · 09-15-2015, 09:46 PM

It sounds like the SLPs option is the best way to go if you can't get your hands on an NPP. It's really kinda hard to judge what kind of sounds the SLPs are putting out on YouTube but the majority seems to rule in favor of them. I've heard the resonator delete isn't going to do much unless you put an x pipe in the system like USMC85 was stating. I appreciate everyone chiming in. Thanks again! like what you've done to your ride, thanks for schooling me with your experiences on the muffler issue .

09-12-2015, 06:39 PM	#1
Ravenvoyager ravenVoyager Drives: 2010 Black SS Camaro Join Date: May 2013 Location: Charleston, WV Posts: 19	SS Muffler Choices I was needing some advice. I have a 2010 SS that's been having some annoying issues with one of the mufflers. After researching the issue it looks like there could be a loose baffle inside the muffler. It sounds like a huge bee dodging along side the car at low RPMs. There's a TSB that addresses the issue but the car is out of its 3 year warranty. I'm wanting to go ahead and change out the mufflers and get a more aggressive tone out of the car without having to do an entire exhaust or header modification. I'm looking at the flow master 40's, 10's and Jones Bore but I'm not sure if I will be able to notice a difference since everything I've read so far says that most of the sound restrictions are prevented by the headers, cats and resonators. If I put on the 10's will it make a difference? Will it be loud or just nominal? I would cut out the mufers and run straight pipes but state law prohibits that alteration and were required to get yearly inspections. If anyone has any sound bytes of a stock system with just the muffler change out please share them. Thanks.

09-12-2015, 07:03 PM	#4
ucHuskies Drives: 2014 SS/RS Blue Ray Join Date: Mar 2015 Location: Long Island, NY Posts: 67	Do you have an L99 or an LS3? If l99, the big center resonator may count as a muffler. Check your states definition. __________________ 2014 1SS/RS L99 Blue Ray Metallic Patrick G Tune \| K&N High Flow \| SOLO Axle Back w/ J-Pipes \| JEGS X-Pipe Resonator Delete

09-14-2015, 07:38 PM	#11
USMC85 Si Vis Pacem, Para Bellum Drives: 2010 Camaro 2SS Join Date: Apr 2010 Location: Connecticut Posts: 112	I have the SLP Loudmouth 2s on my 2010 SS and I would also suggest adding the Summit X pipe and eliminate the resonators too. Initial I left the resonators on and I had a lot of drone at cruising speed. With the X-Pipe the car sounds better and less drone. __________________ "Children should be educated and instructed in the principles of freedom." --John Adams

09-14-2015, 09:38 PM	#12
nosmr2 Drives: 2011 L99 SS Join Date: Oct 2014 Location: Texas Posts: 500	My SLP loudmouth 2 with factory resonator on my L99 sounds good with no drone. It's really only gets loud when you get on it. __________________ 2011 SS ADM LSA Conversion

09-15-2015, 02:29 PM	#13
CamaroCracka Drives: 2010 Turbo LS3 Join Date: Dec 2009 Location: Palm Bay, FL Posts: 2,771	I get a little drone on my Loudmouth2s at 1900 so I just go a little faster. __________________ 2010 SS - On3 kit with downpipe cutout, CTR 78/80, CompCam 239/251 620/632 122+4, E85, Z28 suspension and ZL1 diff with Outlaw axles. Gen6 ZL1/1LE brakes. 2011 Vert - 416/w 230/236 .612/.602 115lsa, 1LE suspension w/32mm rear bar. Z28 diff. ZL1 brakes.

09-12-2015, 06:44 PM	#2
Zaproy Drives: 2014 Camaro SS/RS Join Date: Mar 2015 Location: North Posts: 133	Slp loudmouth axle backs. They're supposed to be identical to a straight pipe.

09-12-2015, 06:57 PM	#3
Ravenvoyager ravenVoyager Drives: 2010 Black SS Camaro Join Date: May 2013 Location: Charleston, WV Posts: 19	I agree with you Zaproy but our state law specifically says no muffler deletes allowed even though there are no laws restricting motorcycles noise levels.

09-12-2015, 08:02 PM	#6
Ravenvoyager ravenVoyager Drives: 2010 Black SS Camaro Join Date: May 2013 Location: Charleston, WV Posts: 19	Thanks for the suggestion UCHuskies. It's certainly worth looking into it. This state is very strict with inspections. I always anticipate some kind of issue when I pull in to get it looked over however I'm good until the end of Aug 2016 :-) I'll check into that. Zaproy, are you talking about the loudmouth axle back or loudmouth 2. I appreciate your alls input.

09-12-2015, 08:05 PM	#7
Ravenvoyager ravenVoyager Drives: 2010 Black SS Camaro Join Date: May 2013 Location: Charleston, WV Posts: 19	Here's the state law: Every motor vehicle shall at all times be equipped with a muffler in good working order and in constant operation to prevent excessive or unusual noise. Such muffler shall be the muffler originally installed by the manufacturer of the vehicle or, if a replacement, the equivalent thereof. No person shall use a muffler cutout, bypass, or similar device upon a motor vehicle on a highway.

09-12-2015, 08:14 PM	#8
Zaproy Drives: 2014 Camaro SS/RS Join Date: Mar 2015 Location: North Posts: 133	I was talking about the loudmouth 2, but DAMN that's harsh, I would definitely look into a used NPP exhaust with npp in a box. You can run with flaps open for that straight pipe sound and then close them to sound like stock when it's necessary. I know I'm definitely gonna try to get my hands on one after I get cammed.

09-12-2015, 08:53 PM	#9
Ravenvoyager ravenVoyager Drives: 2010 Black SS Camaro Join Date: May 2013 Location: Charleston, WV Posts: 19	It sure is. I had to argue with the inspection stations about the phantom grille even though the State Police said that it's no different then their cruisers equipped with a push guard in front of their headlights. That NPP setup is pretty wicked. I'm going to look into that some more. Here's a YouTube in it if anyone's interested: http://youtu.be/Me-wOYpenbo Thanks Zaproy.

09-12-2015, 09:01 PM	#10
Zaproy Drives: 2014 Camaro SS/RS Join Date: Mar 2015 Location: North Posts: 133	Yea no problem, the only drawback of the NPP is you have to wait for one to pop up in the classifieds. It's definitely worth the wait though.

09-15-2015, 09:46 PM	#14
Ravenvoyager ravenVoyager Drives: 2010 Black SS Camaro Join Date: May 2013 Location: Charleston, WV Posts: 19	It sounds like the SLPs option is the best way to go if you can't get your hands on an NPP. It's really kinda hard to judge what kind of sounds the SLPs are putting out on YouTube but the majority seems to rule in favor of them. I've heard the resonator delete isn't going to do much unless you put an x pipe in the system like USMC85 was stating. I appreciate everyone chiming in. Thanks again! like what you've done to your ride, thanks for schooling me with your experiences on the muffler issue .