exhaust doesnt sound good anymore =/ - Page 2 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

chevy 3 · 01-19-2013, 09:38 AM

Mufflers change tone as you put more miles on them. Its all normal except the part that you here something banging around. Mine were supper loud at first then after 3 to 400 miles later they were much quieter. Still sound great when I hit the gas but low rumble at idle.

menendez1293 · 01-19-2013, 09:57 AM

Quote:

Originally Posted by scrming

usually something like this, it tends to be the cats that clog up...

Don't cats only get clogged up from running a dangerous amount of rich?

10RsCamaro · 01-19-2013, 10:32 AM

After a few hundred miles they get a little softer in sound, and also you get use to the sound. At first is sounds like a monster, because it is new.

If you hear a rattling, that's a different story.

J_Vibe92 · 01-19-2013, 04:41 PM

the rattling seems to be from the engine side, prolly should of clarified that

nikos30 · 01-19-2013, 04:44 PM

alright it could be what I had. The misfires are probably because you need a new cat like they are saying. It doesnt use all of the motor when it goes into that mode and thats maybe why its quieter. does the car feel a lot slower?

J_Vibe92 · 01-19-2013, 04:50 PM

yeah but i dunno if its my butt dyno saying it is but i feel less power

spyder · 01-19-2013, 04:57 PM

About 14 months ago my v6 misfired one morning. I took it to the dealer and they flashed the ecu or another module which is known to cause cold start misfires. I have a feeling you may not have the GM update on yours. You should see a dealer soon and have them update. There are many threads about this and I did see an official document from GM.

http://www.camaro5.com/forums/showthread.php?t=124928

http://www.camaro5.com/forums/showthread.php?t=247779

Quote:

Originally Posted by J_Vibe92

multiple misfire

stlrammer · 01-19-2013, 05:01 PM

They make these for your car too. Will make your car sound mean.

Mazzoni1 · 01-20-2013, 01:13 AM

My flowmasters haven't changed at all.. if they did they sound deeper now

01-19-2013, 10:32 AM	#17
10RsCamaro Slow v6 Drives: Automatic Automobile Join Date: Oct 2011 Location: Nj Posts: 526	After a few hundred miles they get a little softer in sound, and also you get use to the sound. At first is sounds like a monster, because it is new. If you hear a rattling, that's a different story. __________________ Full bolt on 2lt/Rs. Any questions? always a pm away! Obx/Mace/Rx/Mrt/Vararam/Bcam/4.11 Gears/SS Brakes USAF. Stationed in TX

01-19-2013, 04:41 PM	#18
J_Vibe92 Drives: 2013 Mustang 5.0 Join Date: Dec 2012 Location: Houston Posts: 1,788	the rattling seems to be from the engine side, prolly should of clarified that __________________ Performance Mods: Vararam Intake, MRTv2.0 exhaust, Elite Engineering CC, Vmax Black Iceolator, Vmax Ported TB, OBX LT Headers w/ no CATS, LMR Tune Visual mods: Eagle Eyes w/5k hids, Custom Hood Spears, Heritage Grille, Stage 2 LED Dome lights,Transformer Emblems, PD Bezels, 19in Chevy rims with pirellis, Blue painted calipers, GM GFX Front Splitter, 35/20 % Tint, TailLight Tint(charcoal) 1/4 Mile: 13.65 sec @ 102.53 mph R.I.P.

01-19-2013, 04:44 PM	#19
nikos30 HT5 EastSide Drives: 2010 Camaro 2LT Join Date: Aug 2010 Location: NJ/PA Posts: 1,596 View My Garage	alright it could be what I had. The misfires are probably because you need a new cat like they are saying. It doesnt use all of the motor when it goes into that mode and thats maybe why its quieter. does the car feel a lot slower? __________________

01-19-2013, 04:50 PM	#20
J_Vibe92 Drives: 2013 Mustang 5.0 Join Date: Dec 2012 Location: Houston Posts: 1,788	yeah but i dunno if its my butt dyno saying it is but i feel less power __________________ Performance Mods: Vararam Intake, MRTv2.0 exhaust, Elite Engineering CC, Vmax Black Iceolator, Vmax Ported TB, OBX LT Headers w/ no CATS, LMR Tune Visual mods: Eagle Eyes w/5k hids, Custom Hood Spears, Heritage Grille, Stage 2 LED Dome lights,Transformer Emblems, PD Bezels, 19in Chevy rims with pirellis, Blue painted calipers, GM GFX Front Splitter, 35/20 % Tint, TailLight Tint(charcoal) 1/4 Mile: 13.65 sec @ 102.53 mph R.I.P.

01-19-2013, 05:01 PM	#22
stlrammer Drives: 2017 1SS Blue Join Date: Mar 2010 Location: Saint Peters, MO USA Posts: 2,063 View My Garage	They make these for your car too. Will make your car sound mean. __________________

01-19-2013, 09:38 AM	#15
chevy 3 NEcamaro5 Drives: Black 2ss rs 1LE Join Date: Apr 2009 Location: mass Posts: 4,328 View My Garage	Mufflers change tone as you put more miles on them. Its all normal except the part that you here something banging around. Mine were supper loud at first then after 3 to 400 miles later they were much quieter. Still sound great when I hit the gas but low rumble at idle.

01-20-2013, 01:13 AM	#23
Mazzoni1 Drives: 2010 1lt Join Date: Jul 2012 Location: United States Posts: 90 View My Garage	My flowmasters haven't changed at all.. if they did they sound deeper now