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Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons Bolt-Ons | Intakes | Exhaust

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Old 09-06-2012, 06:28 AM   #1
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2012 SS L99 stock exhaust sounds so weak

I just bought a 2012 camaro ss automatic and the stock exhaust does not sound very good. My friend just bought a mustang gt and its stock exhaust sounded amazing. Is it just my camaro and i got a dud?? Or do they all sound kinda weak? Thanks!
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Old 09-06-2012, 06:37 AM   #2
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They are weak. im putting on a solo high flow cats this weekend to make it sound better
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Old 09-06-2012, 07:03 AM   #3
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wait until the little spring thinggys to reduce AFM drone start rattling!
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Old 09-06-2012, 09:05 AM   #4
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They are very tame from the factory. Luckily, we have an excellent aftermarket following so it doesn't have to stay that way. Give us a call and we help you take care of the exhaust problem real quick. Or you can always stop by our site and shop around....we have video clips up on most of our systems!
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Old 09-06-2012, 09:22 AM   #5
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Yep, stock exhaust is very weak. You can put on an aftermarket system, but then you will hear the AFM noise more when it kicks in and out. So then you will want a tune to turn off AFM....it's a slippery slope. Oh yeah, and those trash can-looking mufflers are heavy and ugly. Another good reason to ditch the stock system.
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Old 09-06-2012, 12:39 PM   #6
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Quote:
Originally Posted by dab86 View Post
I just bought a 2012 camaro ss automatic and the stock exhaust does not sound very good. My friend just bought a mustang gt and its stock exhaust sounded amazing. Is it just my camaro and i got a dud?? Or do they all sound kinda weak? Thanks!
An aftermarket axle-back will definitely help with that! Check our LSR axle-back exhaust, it's made in the USA and features a lifetime warranty:


Video:


Let me know if I can help you with anything!
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Old 09-06-2012, 12:47 PM   #7
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Get some long tubes , high flows and exhaust system of your choice and a tune, I did with less than 100 miles on my SS
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Old 09-06-2012, 01:32 PM   #8
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Muffler delete for 100$ is still getting me compliments everyday. I'm still planning to get the stainless works retro catback sometime down the road.
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Old 09-06-2012, 02:30 PM   #9
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Take it to shop from the cats back get. x pipe then straight pipe all the way to the end. sounds great . but the amf needs to be tuned out dose not have to be but sounds better
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Old 09-07-2012, 05:39 AM   #10
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Why tune ? Get the Solo axle back J-pipes.
Muffler delete, great sound and no drone or AFM noise on my L99 SS.
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Old 09-07-2012, 05:43 AM   #11
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Quote:
Originally Posted by JoshBobGuptaMarley View Post
Muffler delete for 100$ is still getting me compliments everyday.

This is what I did too, sounds great. Best $120 I have spent
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Old 09-07-2012, 05:50 AM   #12
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The Mustangs always have had the Camaros in the sound department (stock) in my opinion. I hated the way mine sounded and put an axle back on my car at 75 miles. Not only will you give you the sound you are looking for, but a weight savings. It will really come to life if you ever decide to go with long tubes.
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Old 09-07-2012, 08:36 AM   #13
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Long tubes = great sound

Stock L99 A6 exhaust is ridiculously weak sounding. It's embarrassing for a 400hp Camaro SS.

I watched a guy with a stock Camaro SS rev his engine (for a group of people). Everyone just looked at each other like "that's it?"
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Old 09-07-2012, 10:10 AM   #14
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Quote:
Originally Posted by SGOS252382 View Post
Long tubes = great sound

Stock L99 A6 exhaust is ridiculously weak sounding. It's embarrassing for a 400hp Camaro SS.

I watched a guy with a stock Camaro SS rev his engine (for a group of people). Everyone just looked at each other like "that's it?"
Yep very true this is why my exhaust only stayed stock for 2 day after I got it.

Longtube Headers=
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Old 09-07-2012, 12:31 PM   #15
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Headers, no cats, unresonated Xpipe......what quite L99? Lol
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Old 10-07-2012, 11:04 AM   #16
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AFM resonators will kill the sound when you combine them with the normal set of resonators & cats.
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Old 10-07-2012, 11:14 AM   #17
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They are week. Got rid of mine and went the flowmaster AT.
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Old 10-07-2012, 12:41 PM   #18
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I had the same issue, I have a 2013 L99, and I couldnt believe for a V8 there was no rumble! 3 mods changed my cars life, the CAI, LT headers and Brola S-Type catback. It sounds like I have 10k of work in it lol, loving the sound! Also DO THE TUNE!....if you dont, your not going to be happy with how it drives. Literally night and day for me.
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Old 10-07-2012, 03:51 PM   #19
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Be aware most axle-back options will not extend far enuff to remove the sound attenuators in the L99 exhaust.

You'll need to cut them out or go with a cat-back system.

It's the spring loaded "pop-off" valve in thses pics:
Attached Images
  
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Old 10-07-2012, 06:14 PM   #20
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Old 10-07-2012, 08:02 PM   #21
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Its weak because GM unwisely put a truck motor in the car with AFM. They had to kill the ricer noise when in 4 bagger mode which is why there is huge resonaters and mufflers. If you truely want great V8 sound get some LT headers with a tune that leaves the car in V8 mode all the time.
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Old 10-08-2012, 01:37 PM   #22
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We put a Magnaflow Street Series catback on the SS above followed by Solo HFC's.

Got the perfect combo of "modern, civilized-but-mean muscle car" sound the owner was looking for. AFM drone is more noticable but tolerable, although the owner is planning to tune anyway, but more for tranny performance improvements.

I would recommend this set-up to anyone (has me considering finally trading up for a V8!).
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Old 10-10-2012, 10:01 AM   #23
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My 2012 L99 doesn't have the pop off's?

Quote:
Originally Posted by Ventmaster View Post
Be aware most axle-back options will not extend far enuff to remove the sound attenuators in the L99 exhaust.

You'll need to cut them out or go with a cat-back system.



It's the spring loaded "pop-off" valve in thses pics:

Did they change the piping on the 2012 models?

Last edited by Rockhound; 03-23-2013 at 09:17 PM.
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Old 10-10-2012, 10:09 AM   #24
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The "pop off" valves are only on ragtops.
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Old 10-10-2012, 10:14 AM   #25
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BTW, wouldn't a simple 'muffler delete' resurrect the rumble? Those stock trash cans are horrible.
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