Snap, Crackle, Pop Exhaust-- Stock or Not - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

K Love · 08-05-2012, 06:54 PM

Finally got my SS (named BlackJack), and ended up going the pre-owned route (2010). I was assured that Jack was completely stock, and based on my own knowledge/ exam, everything checked out to be stock. Jack is my secondary vehicle, so I really didn't get a chance to become completely familiar with him until day 3. After driving for a while, I noticed that when I take my foot off of the gas while in second, third, or fourth gear, Jack growls and sometimes pops in a nasty but not obnoxious way. It actually sounds pretty HOT to me, but my concern is about how hot the car gets and the smell as of late. If I open the console and put my hand on the bottom, it's hot to the touch. After driving and I park and walk past the rear tires, the heat that comes out from between the wheel spokes is very hot. Over the past couple of days, I've noticed an ever so slight burning smell in the garage after parking. If I didn't point it out to someone else, they probably wouldn't notice the smell (but I notice everything). There are burn marks on the exhaust pans underneath the car also. The exhaust tips don't have any names embossed on them, but that doesn't necessarily mean that it's stock... I've driven the 2011-13, but not the 2010 until I got Jack, so I'm not as familiar with the stock sound as I'd like to be. I figured I'd ask my fellow members before going to a professional for information. Is all of the heat/ the sound normal?

Higgs Boson · 08-05-2012, 07:00 PM

it is due strictly to one thing only. spark timing settings during deceleration fuel cutoff. it is fixable with a tune and more pronounced with an aftermarket exhaust.

it is normal for stock. curiously, gm tuned it out of the zr1. more decerning buyers prefer a smooth decel. hahaha.

camaroRND2 · 08-05-2012, 07:04 PM

i love the pop with magnaflow but im about to lose it with my cam kit going in and a jenetty tune. Oh yeah forgot hes right my car did it to when everything was stock

Higgs Boson · 08-05-2012, 07:06 PM

a tune won't fix it unless you ask them to.

Jmar · 08-05-2012, 07:26 PM

I've run over plastic bags before which have made contact with the exhaust. Burnt bags smell for a while - especially if you don't drive the car often & park in a garage. Look for marks on the pipes.

I hear the popping through my stock exhuast. It doesn't bother me since it's quiet.

K Love · 08-05-2012, 07:27 PM

Thank u Higgs and CamaroRND2. VERY helpful information. Exactly why I joined...

K Love · 08-05-2012, 07:28 PM

No marks on the pipes so far... thanks for the tip though, Jmar.

SSDan · 08-05-2012, 09:56 PM

Everything you described I experienced when mine was still stock. Now go mod it up!

2012SS · 08-05-2012, 10:22 PM

Wait until you get an aftermarket exhaust lol. I have outlaws on mine and it sounds like gunshots sometimes.

K Love · 08-05-2012, 10:49 PM

LOL. Gunshots... Would love to hear your exhaust 2012SS.

Very excited to get my mod on, SSDan. Will definitely share with C5 when I do.

litle88 · 08-05-2012, 11:05 PM

You don't know Jack!

Lol sorry couldn't help it, welcome but two things please refrain from naming your car and remember its not a C5 so don't call it that ( C5's are 5th Gen corvettes) you have a 5th Gen Camaro SS (SS means Stock Sucks)

The popping is a manly thing so leave it alone, and start modding that bad aSS.

Also are you Ls3 or L99?

Enjoy!!

K Love · 08-05-2012, 11:11 PM

LS3

keving2873 · 08-05-2012, 11:12 PM

I popped a lot after doing an exhaust upgrade, then I added headers...... I have made people duck for cover sometimes when I am decelerating. I like the pops but I am ready for a cam ad possibly reducing the popping. I know what it is but so many people think it is a backfire, and I will admit, it does pop a little high pitched at times so I would like to get rid of that.

KTWillys · 08-05-2012, 11:29 PM

Hello all... Post number 2..

I had the slight decel pops with the stock exhaust..
recently went to a Hanksville Hot Rods Custom Exhaust System
A Magnaflow X flow Muffler was used in place of the resinators and 2 1/2 inch thick wall stainless custom mandrel bent pipe was run to the back. No mufflers in the back.

It still has the decel pop, maybe a bit worse but as the computer has caught up it seems to be somewhat better,,
not going to change the tune until the super charger is installed..
that might make a slight difference in the performance of my Camaro...

slight

crud.. sig pic wont show up.. will have to work on that...

08-05-2012, 06:54 PM	#1
K Love Drives: 2SS/RS/LS3 Join Date: Mar 2012 Location: DC Metro Area Posts: 24	Snap, Crackle, Pop Exhaust-- Stock or Not Finally got my SS (named BlackJack), and ended up going the pre-owned route (2010). I was assured that Jack was completely stock, and based on my own knowledge/ exam, everything checked out to be stock. Jack is my secondary vehicle, so I really didn't get a chance to become completely familiar with him until day 3. After driving for a while, I noticed that when I take my foot off of the gas while in second, third, or fourth gear, Jack growls and sometimes pops in a nasty but not obnoxious way. It actually sounds pretty HOT to me, but my concern is about how hot the car gets and the smell as of late. If I open the console and put my hand on the bottom, it's hot to the touch. After driving and I park and walk past the rear tires, the heat that comes out from between the wheel spokes is very hot. Over the past couple of days, I've noticed an ever so slight burning smell in the garage after parking. If I didn't point it out to someone else, they probably wouldn't notice the smell (but I notice everything). There are burn marks on the exhaust pans underneath the car also. The exhaust tips don't have any names embossed on them, but that doesn't necessarily mean that it's stock... I've driven the 2011-13, but not the 2010 until I got Jack, so I'm not as familiar with the stock sound as I'd like to be. I figured I'd ask my fellow members before going to a professional for information. Is all of the heat/ the sound normal?

08-05-2012, 07:04 PM	#3
camaroRND2 Drives: IBM 2SS/RS 6sp. Join Date: Jan 2012 Location: Valdosta Ga Posts: 541 View My Garage	i love the pop with magnaflow but im about to lose it with my cam kit going in and a jenetty tune. Oh yeah forgot hes right my car did it to when everything was stock __________________ Build Thread http://www.camaro5.com/forums/showthread.php?t=206489

08-05-2012, 09:56 PM	#8
SSDan Drives: 2016 1SS 6MT NPP Join Date: Feb 2010 Location: Lake Murray, SC Posts: 2,261 View My Garage	Everything you described I experienced when mine was still stock. Now go mod it up! __________________ 2016 Camaro 1SS Hyper Blue 6MT NPP 2010 Camaro 2SS Cam/Headers/CAI/3.91 gears 476 rwhp/440 rwtq (sold)

08-05-2012, 10:22 PM	#9
2012SS Drives: 2012 V.R. Camaro SS, '67 Camaro Join Date: Feb 2012 Location: Houston, Tx Posts: 143	Wait until you get an aftermarket exhaust lol. I have outlaws on mine and it sounds like gunshots sometimes. __________________ 2012 Camaro SS Victory Red, CAI intake, Flowmaster Outlaw Catback

08-05-2012, 11:05 PM	#11
litle88 V8 Lounge member #2 Drives: 2001 Ws6 Join Date: Sep 2009 Location: Burbank,IL Posts: 6,373	You don't know Jack! Lol sorry couldn't help it, welcome but two things please refrain from naming your car and remember its not a C5 so don't call it that ( C5's are 5th Gen corvettes) you have a 5th Gen Camaro SS (SS means Stock Sucks) The popping is a manly thing so leave it alone, and start modding that bad aSS. Also are you Ls3 or L99? Enjoy!! __________________ 2001 ws6, 40k miles, Ls3 416 stroker, short block built by PER the rest by me. LPE Ls3 heads milled to 12-1 comp, FAST 102, NW 102, kooks 2", dual DMH cutouts, Magnaflow C/B, BTR cam + springs. Full UMI suspension.

08-05-2012, 07:00 PM	#2
Higgs Boson Perpetual Order Drives: indeed Join Date: Jun 2012 Location: Texas Hill Country Posts: 1,277	it is due strictly to one thing only. spark timing settings during deceleration fuel cutoff. it is fixable with a tune and more pronounced with an aftermarket exhaust. it is normal for stock. curiously, gm tuned it out of the zr1. more decerning buyers prefer a smooth decel. hahaha.

08-05-2012, 07:06 PM	#4
Higgs Boson Perpetual Order Drives: indeed Join Date: Jun 2012 Location: Texas Hill Country Posts: 1,277	a tune won't fix it unless you ask them to.

08-05-2012, 07:26 PM	#5
Jmar Drives: 2012 LS3 CRM, V8 Healey, Mini Join Date: Jun 2012 Location: MI Posts: 103	I've run over plastic bags before which have made contact with the exhaust. Burnt bags smell for a while - especially if you don't drive the car often & park in a garage. Look for marks on the pipes. I hear the popping through my stock exhuast. It doesn't bother me since it's quiet.

08-05-2012, 07:27 PM	#6
K Love Drives: 2SS/RS/LS3 Join Date: Mar 2012 Location: DC Metro Area Posts: 24	Thank u Higgs and CamaroRND2. VERY helpful information. Exactly why I joined...

08-05-2012, 07:28 PM	#7
K Love Drives: 2SS/RS/LS3 Join Date: Mar 2012 Location: DC Metro Area Posts: 24	No marks on the pipes so far... thanks for the tip though, Jmar.

08-05-2012, 10:49 PM	#10
K Love Drives: 2SS/RS/LS3 Join Date: Mar 2012 Location: DC Metro Area Posts: 24	LOL. Gunshots... Would love to hear your exhaust 2012SS. Very excited to get my mod on, SSDan. Will definitely share with C5 when I do.

08-05-2012, 11:11 PM	#12
K Love Drives: 2SS/RS/LS3 Join Date: Mar 2012 Location: DC Metro Area Posts: 24	LS3

08-05-2012, 11:12 PM	#13
keving2873 Drives: 2011 Camaro 2SS RS Join Date: Feb 2011 Location: Bremerton, WA Posts: 701 View My Garage	I popped a lot after doing an exhaust upgrade, then I added headers...... I have made people duck for cover sometimes when I am decelerating. I like the pops but I am ready for a cam ad possibly reducing the popping. I know what it is but so many people think it is a backfire, and I will admit, it does pop a little high pitched at times so I would like to get rid of that. __________________ 2023 Black ZL1 Awaiting Allocation 476whp 455trq / Tuned by Tom Wong CAI Intake with ADM Scoop, Borla ATAK cat-back, ARH 1 7/8 Headers and HF Cats Custom Comp Cam 231/234 114LSA 617/598 lift, Katech timing chain Apex Catch-can VMAX Ported Throttle Body 20" Niche Essen's wrapped in Michelin PSS 315/295

08-05-2012, 11:29 PM	#14
KTWillys Drives: 2012 45th Anniversary Join Date: Aug 2012 Location: State Of Confusion Posts: 160	Hello all... Post number 2.. I had the slight decel pops with the stock exhaust.. recently went to a Hanksville Hot Rods Custom Exhaust System A Magnaflow X flow Muffler was used in place of the resinators and 2 1/2 inch thick wall stainless custom mandrel bent pipe was run to the back. No mufflers in the back. It still has the decel pop, maybe a bit worse but as the computer has caught up it seems to be somewhat better,, not going to change the tune until the super charger is installed.. that might make a slight difference in the performance of my Camaro... slight crud.. sig pic wont show up.. will have to work on that...