People with Flowmaster AMT Cat Back.... - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Mark Myles · 03-27-2010, 12:04 PM

I would like to know from everyone that installed the Flowmaster American Thunder Cat Back exhaust system on their LS3, (no headers) how is the interior sound while driving..??

The system sounds great from all the vids I've seen, but would like to know if there are any drone problems or other issues while driving 60 - 80.

Thanks!

M

jty03 · 03-27-2010, 12:33 PM

I don't get drone. Idle sound through the power band I like. Make sure you compensate for the 3 inch as opposed to the stock pipes. Overall I love mine.

Mark Myles · 03-27-2010, 01:54 PM

Thanks for the reply.

What do you mean "compensate for the 3" pipes".?? I remember reading something about adding washers / center brace clearance issues.....is this what you're talking about..?

Thanks!

M

hansenp · 03-27-2010, 01:58 PM

I agree as to the sound it is agressive thru shifting or acceleration but not any drone The bolt on system is a complete 3 inch system.

Tonka · 03-27-2010, 05:26 PM

i love mine aggressive and not being overly loud even though i wouldnt mind it. Ill try to take a video and get it up

2010 SSRS · 03-27-2010, 05:45 PM

I thought the Flowmaster system only came with full 3 inch exhaust.

Mark Myles · 03-27-2010, 07:05 PM

yes...it is 3"....i'm just not sure if there is any installation problems I should know about with the 3" Cat Back Flowmaster.?? I want to be able to drive my Camaro from the dealership to my buddy's repair shop and slip it on..lol..... Plus I was worried about it being too loud or having a drone problem. Sounds like everyone is happy with it.

Any info on installation tips would be appreciated.

Thanks!

M

thesnoopster · 03-27-2010, 07:10 PM

Anyone got it with the L99?? Im looking into this exhaust as well...

The 2010 Sin · 03-27-2010, 08:10 PM

well i did the muffler delete... sounded really thin and pointless... then i did the flowmaster catback.. AMAZING difference in tone.. its a low growl very minimal drone and has a huge potential with other mods if you decide to go the header route.. watch my video comparisons on here...

http://www.camaro5.com/forums/showthread.php?t=70515

Merlinnnn · 03-27-2010, 09:56 PM

My experience with it was, yes, the interior sound is much louder than stock. The Flowmaster website even says it has increased or more aggressive sound on the exterior and interior and I guess I should have listened to them

. I'm sure many people love it but it was just too much for me. Low rpm in any gear and I had, at least what I call, drone or a resonance that was too intrusive for my liking. Just my .02

moultron · 03-27-2010, 11:17 PM

Installed the catback flowmaster 40 series. Nice sound and I am overall happy with it. But I do get droning at 86 MPH or lower in 6th gear. If I downshift (via manual mode) then it goes away. I am planning to delete my active fuel management with my Superchips tuner tomorrow as I have heard that this will fix the problem. I will let you know. BTW...if you have not figured it out, I drive an A6.

NVMY68SS · 03-28-2010, 08:28 AM

Here's a video I took of mine with some drive-bys as well as some interior sound you can listen too at various speeds.........hope this helps. http://www.youtube.com/user/NVMY68SS.../1/nva8IqWWAwA

I do have the Roto-Fab and Doug Thorley shorties along with the Flowmaster AMT setup. Install is incredibly simple.

Mark Myles · 03-28-2010, 09:58 AM

Thanks everyone!

M

Striker · 03-31-2010, 01:21 PM

Hi,
I've been looking at the Flowmaster 817481 American Thunder Cat-back system.
Has anyone installed this on a 2SS and have there been any issues as it relates to deleting the original resonators.

03-27-2010, 12:04 PM	#1
Mark Myles Drives: 2010 2SS/RS IBM / Silver Stripes Join Date: Mar 2010 Location: Northeast Michigan Posts: 601	People with Flowmaster AMT Cat Back.... I would like to know from everyone that installed the Flowmaster American Thunder Cat Back exhaust system on their LS3, (no headers) how is the interior sound while driving..?? The system sounds great from all the vids I've seen, but would like to know if there are any drone problems or other issues while driving 60 - 80. Thanks! M

03-27-2010, 12:33 PM	#2
jty03 Drives: 2SS/RS Join Date: Jan 2010 Location: Lawton, OK Posts: 65	I don't get drone. Idle sound through the power band I like. Make sure you compensate for the 3 inch as opposed to the stock pipes. Overall I love mine. __________________ 2010 Black 2SS/RS. Intake: CAI, Inc. Exhaust: Flowmaster AMT 409S. Hurst short throw shifter, AAC blue footwell lighting in sync with dome ... i love this ride

03-27-2010, 05:26 PM	#5
Tonka Drives: 2010 Cyber Gray 2SS Camaro Join Date: May 2009 Location: Camarillo, CA Posts: 140 View My Garage	i love mine aggressive and not being overly loud even though i wouldnt mind it. Ill try to take a video and get it up __________________ 2010 CGM 2SS M6 w/ FM AT Cat back

03-27-2010, 05:45 PM	#6
2010 SSRS Drives: 3 V8 Camaros Join Date: May 2009 Location: The Ocean State Posts: 111,187 View My Garage	I thought the Flowmaster system only came with full 3 inch exhaust. __________________ Jannetty Racing JRE Street Package

03-27-2010, 07:10 PM	#8
thesnoopster Drives: '17 Fifty SS - '18 Traverse Redline Join Date: Jul 2009 Location: Northern Virginia Posts: 3,616	Anyone got it with the L99?? Im looking into this exhaust as well... __________________ 2017 Camaro SS -"FIFTY" Mods: "93 Octane"

03-27-2010, 01:54 PM	#3
Mark Myles Drives: 2010 2SS/RS IBM / Silver Stripes Join Date: Mar 2010 Location: Northeast Michigan Posts: 601	Thanks for the reply. What do you mean "compensate for the 3" pipes".?? I remember reading something about adding washers / center brace clearance issues.....is this what you're talking about..? Thanks! M

03-27-2010, 01:58 PM	#4
hansenp Drives: 2010 Camaro 2 SS/RS Join Date: Sep 2009 Location: San Francisco, California Posts: 416	I agree as to the sound it is agressive thru shifting or acceleration but not any drone The bolt on system is a complete 3 inch system.

03-27-2010, 07:05 PM	#7
Mark Myles Drives: 2010 2SS/RS IBM / Silver Stripes Join Date: Mar 2010 Location: Northeast Michigan Posts: 601	yes...it is 3"....i'm just not sure if there is any installation problems I should know about with the 3" Cat Back Flowmaster.?? I want to be able to drive my Camaro from the dealership to my buddy's repair shop and slip it on..lol..... Plus I was worried about it being too loud or having a drone problem. Sounds like everyone is happy with it. Any info on installation tips would be appreciated. Thanks! M

03-27-2010, 08:10 PM	#9
The 2010 Sin Dont H8 Me Cuz U Aint Me Drives: 2016 SS Sedan, 2017 Explorer Sport Join Date: Feb 2010 Location: Tulsa, Oklahoma Posts: 2,910	well i did the muffler delete... sounded really thin and pointless... then i did the flowmaster catback.. AMAZING difference in tone.. its a low growl very minimal drone and has a huge potential with other mods if you decide to go the header route.. watch my video comparisons on here... http://www.camaro5.com/forums/showthread.php?t=70515 __________________

03-27-2010, 09:56 PM	#10
Merlinnnn Drives: 2011 Mustang GT Join Date: Dec 2009 Location: Burleson, Texas Posts: 72	My experience with it was, yes, the interior sound is much louder than stock. The Flowmaster website even says it has increased or more aggressive sound on the exterior and interior and I guess I should have listened to them. I'm sure many people love it but it was just too much for me. Low rpm in any gear and I had, at least what I call, drone or a resonance that was too intrusive for my liking. Just my .02

03-27-2010, 11:17 PM	#11
moultron Drives: 2ss Inferno Orange Join Date: Jan 2010 Location: Hudson, FL (NW Tampa area) Posts: 102 View My Garage	Installed the catback flowmaster 40 series. Nice sound and I am overall happy with it. But I do get droning at 86 MPH or lower in 6th gear. If I downshift (via manual mode) then it goes away. I am planning to delete my active fuel management with my Superchips tuner tomorrow as I have heard that this will fix the problem. I will let you know. BTW...if you have not figured it out, I drive an A6. __________________ *Sean M.* http://gallery.me.com/seanmoulton/100013

03-28-2010, 08:28 AM	#12
NVMY68SS Drives #296 Drives: 1968 Camaro SS - 350/5 Speed Join Date: Aug 2007 Location: Smithfield, NC Posts: 953	Here's a video I took of mine with some drive-bys as well as some interior sound you can listen too at various speeds.........hope this helps. http://www.youtube.com/user/NVMY68SS.../1/nva8IqWWAwA I do have the Roto-Fab and Doug Thorley shorties along with the Flowmaster AMT setup. Install is incredibly simple. __________________ #296 Delivered 6-1-09 Dynoed 10-3-09 384.56HP 387.65TQ with the bolt-ons listed, no tune.....yet! Roto-Fab CAI (Install pics here), Doug Thorley Shorties, Flowmaster American Thunder 409S Cat Back Vid

03-28-2010, 09:58 AM	#13
Mark Myles Drives: 2010 2SS/RS IBM / Silver Stripes Join Date: Mar 2010 Location: Northeast Michigan Posts: 601	Thanks everyone! M

03-31-2010, 01:21 PM	#14
Striker Drives: Rally Yellow 2SS Join Date: Sep 2009 Location: Palm Beach Posts: 57	Hi, I've been looking at the Flowmaster 817481 American Thunder Cat-back system. Has anyone installed this on a 2SS and have there been any issues as it relates to deleting the original resonators.

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