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10-07-2014, 01:06 PM
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#1 |
      
Drives: 2011 Camaro 2SS/RS Convertible and: Join Date: May 2014
Location: Central Texas
Posts: 1,863
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L99 Exhaust
I am sure this is covered on here somewhere, but the search function brings up a menagerie of unrelated, so I'll cut to the chase.
I'm looking to add a little more 'growl' to my exhaust. L99 with the only engine modification really being CAI intake. I do NOT want to get rid of cats or add headers - we have tight emission checks here and I don't want to skirt around things, and also do not want to mess with potential warranty issues. What's a good recommendation for post-cat mod? Flowmaster 40's? Any input would be appreciated. No need to tell me to do more, I'm not going to. Thanks in advance!
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Currently in my Garage: 2011 Camaro 2SS/RS Convertible | 1980 Corvette Stingray | 1981 Firebird | 1968 El Camino | 2007 Crown Vic Police Interceptor | 2001 Silverado | 2001 Blazer | 1965 Chevy C-10 | 2007 Harley Softail Custom | 2013 MX-5 in Copper Red Mica | 2000 Corvette Convertible | 2010 Corvette Grand Sport | 2006 Audi A3 Turbo | 2008 BMW 328i  |
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10-07-2014, 01:18 PM
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#2 |
Drives: Camaro SS/RS inferno red interior Join Date: Mar 2012
Location: Pompano Beach FL
Posts: 817
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Just delete the mufflers?
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SoFlo Muscle Car Group
Miami/Broward |
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10-07-2014, 01:22 PM
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#3 |
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Let's go Rangers!
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Corsa FTMFW! Just keep in mind that whatever you do AFM will more annoying.
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 Soprano 4/1/00-6/14/11, Gone but NEVER forgotten! FSP tuned: 377/389 |
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10-07-2014, 01:50 PM
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#4 |
 Drives: 2010 2SS/RS Join Date: Jul 2014
Location: Ma
Posts: 476
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I have a Corsa as well, really like it. Quiet at idle, nice deep sound at WOT. AFM is a bit annoying but I have a delete to get rid of it.
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10-07-2014, 02:15 PM
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#5 |
Drives: 2012 Camaro SS 45th Anniversary Join Date: Sep 2013
Location: Albuquerque
Posts: 963
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remove factory mufflers, straight pipe
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 ~ 2012 SS ~ |
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10-07-2014, 02:38 PM
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#6 |
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War Horse Pilot
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I did Cherry Bomb Extreme axle back and a custom X pipe instead of the resonator behind the cats. Nice growl, good tone, but does drone on the hwy. No biggie for me though.
But you wll probably want a Range device to avoid the nice active fuel management noise when it kicks in, or drive in manual mode. I have heard that most axle or cat backs on the L99's really sound bad when AFM kicks in. If you want loud, you will likely also get drone. Flowmasters drone a lot, but they also sound good. Same with Borla. You can always also do a Retro Cat Back with the "J" pipes to eliminate any drone. I had to listen to a lot of sound clips on youtube and on here to really decide what ways I wanted to go. Got a great deal on my Cherry Bombs from another memeber on here so I went that route.
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COTW 09/07/2015 - 2014 AGM 2SS/RS - RIP 6/01/17
2017 Nightfall Gray Metallic 1SS 1LE Born 5/17/17 - Click Sig Pic below for for Demon War Horse 02 Build Thread  SigPic by Hazman |
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10-07-2014, 04:00 PM
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#7 |
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Dimitri
Drives: 68 GTO 455 Ram Air; 2014 Camaro ZL1 Join Date: Jan 2014
Location: Novato, California
Posts: 602
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I had the Flowmaster's, they sound awesome. The drone drove me nuts. I replaced the axle back Flowmaster with the axle back Solo. No more drone. You can still hear a little bit of the AFM.
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10-07-2014, 06:22 PM
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#8 |
 
Drives: 2014 2SS RSFV3F Ordered- TPW5/26 Join Date: May 2014
Location: Long Island NY
Posts: 70
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I just did Solo Axleback on my 2014 SS. It sounds like a BEAST. Absolutely no drone when cruising!!!
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10-07-2014, 07:24 PM
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#9 | |
     
Drives: SUMMIT WHITE 2SS/RS CAMARO Join Date: Feb 2008
Location: 2018: Lakewood Ranch, Fl.
Posts: 8,112
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Quote:
I've had them for over 3 years now on my otherwise stock Camaro. Great deep rumble on my L99 and no drone at any rpm.
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10-07-2014, 07:31 PM
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#10 |
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Range AFM delete module before you decide on your exhaust so you won't have to listen to that AFM kick in.
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 2014 2SS/RS VERT L99 SUMMIT WHITE AIRAID CAI BORLA ATAK CAT-BACK EXHAUST ELITE ENGINEERING CATCH-CAN RANGE AFM-DELETE MODULE HUPER OPTIK 40 CHROME PEDALS PREMIUM FLOOR MATS PREMIUM CARGO MAT DEDICATED 32GB iPHONE HD[/I][/B][IMG][/IMG] |
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10-07-2014, 07:54 PM
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#11 | |
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Quote:
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2013 1SS/RS Coupe L99, Stainless Power Works LT Headers, SCT X4 Custom Tune from RDP, CAI Inc. Air Intake w/ Apex Scoop, VMAX CNC Ported Throttle Body, Solo Axle-Back Exhaust w/ J-pipes, Apex Catch Can, Husky Splash Guards, Heritage Grille, 3D Carbon Rear Spoiler, Oracle Chrome Turn Signal Bulbs, GM Reverse Light Trim Billets, Gorilla Black Locking Lugs, Emblem Pros Retro SS Badges/Custom Retro SS Kickplates/Under-hood Bowtie, 35% window Tint, Nitto Motivo Tires (6-8-18)
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10-07-2014, 10:00 PM
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#12 |
 
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Solo Mach XL cat back with J pipes. Sounds great, no drone. I can hear the AFM a little more now, but I heard it with the stock exhaust also.
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10-07-2014, 10:14 PM
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#13 |
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When I had my L99 I put on Flowmaster American Thunder cat-back. Loved the sound, growl.
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10-08-2014, 04:57 PM
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#14 |
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Infantry leads the way!
Drives: 2012 SW L99 2SS/RS Join Date: Sep 2013
Location: El Paso, Texas
Posts: 154
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Get the Borla Atak catback and the range device to get rid of AFM. You will love it. I know you don't want to hear it, but headers and a tune will make it a totally different animal.
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 Borla ATAK Catback C.A.I CAI JRE Scoop Elite Catch Can Bo White Ported Throttle Body PFADT Tri-Y Long Tube Headers High Flow Cats NOWEEDS GPI VVT SS3 Cam Circle D 3800 Torque Converter Tuned by Southwest Speed |
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