Flowmaster axleback sound okay

fartingchicken · Oct 21, 2007

I put on Flowmaster axlebacks (the black ones). Louder than original mufflers. I don't care for the volume at 20-40 mph, but overall, pretty good choice.

Casey4s · Oct 21, 2007

Those are the same as mine, American Thunder. I have had mine for 10K miles and I am satisfied with the sound, or I am just used to it now.

Good choice

kooldawg6 · Oct 21, 2007

Add an O/R H and they will become louder yet...the floorboards will vibrate and you will feel it in your feet

ElCid2006 · Oct 26, 2007

I have the American Thunder's on mine also and I'm impressed. Mine weren't much louder than stock when I first put them on, but they got louder as they got broken in. I also haven't had any of the rattling or problems with broken baffles that other Flowmaster owners complain about.

kooldawg6 · Oct 27, 2007

ElCid2006 said:
I also haven't had any of the rattling or problems with broken baffles that other Flowmaster owners complain about.

My 2nd set are holding up fine after 6 months(19K miles)of O/R H pipe and right foot abuse.

bigcat · Nov 6, 2007

no problems here with the flows....

fobra559 · Nov 9, 2007

ElCid2006 said:
Mine weren't much louder than stock when I first put them on, but they got louder as they got broken in.

That's what great about Flowmasters the sound becomes better with age

Fast05 · Nov 9, 2007

They will sound better as you drive more, mine didn't sound much louder than stock after I put them on but a few months of driving and it sounded like a beast. Or if you don't want to wait you could always throw on some lt's and an or h to match and it will sound incredible

RedDot · Nov 19, 2007

Flowmaster American Thunder

I've had my Flowmaster American Thunders since the day after I took delivery in March 2007. I don't notice them being any louder than the day I bought them. They sound great though - Nice, mellow, and deep.

I had the shop weld them in rather than use the clamps. I don't plan on any drivetrain mods for about 5 years. I've had zero problems with them: no exhaust gases in the cockpit and no rattling.

Also, there is no annoying drone. Just a moderate interior increase in the sound of the engine/exhaust. Exactly what I was looking for in an axle-back system.

JP3stix · Nov 21, 2007

I'm a novice when it comes to aftermarket. Own an '06 GT premium convert, green. Interested in a more beefed-up sound; I gather the Flowmaster American Thunder is a good, fairly economical way to go? If so, does it matter who installs them? I am considering G&K Muffler in Marietta, GA thx

RedDot · Nov 21, 2007

JP3stix said:
I'm a novice when it comes to aftermarket. Own an '06 GT premium convert, green. Interested in a more beefed-up sound; I gather the Flowmaster American Thunder is a good, fairly economical way to go? If so, does it matter who installs them? I am considering G&K Muffler in Marietta, GA thx

IMHO, any muffler shop that's been in business for a while would be able to do the job right. I don't do any work on my car; I just watch the pro's do it. The American Thunder Axle Back system looks like a standard muffler replacement job. There are even several posts on how to replace an Axle Back system on a few forums.

The only thing I had done extra is to have my shop weld the mufflers in instead of just using the supplied clamps that come with the kit. Some people complained of exhaust gases getting into the interior, and they said they were told it was because of a bad seal at the joint where the Axle Backs connect to the stock exhaust.

Anyway, my shop did the job in 1.5 hours (between) the other jobs they had. I couldn't be happier with the Flowmaster Kit.

whyask · Nov 21, 2007

found some generic ebay 1 chambers for 60 bucks for 2 and wow they sound great with my catted X pipe from Pypes.. real throaty and 60's sound!

spectre30075 · Nov 26, 2007

JP3stix said:
I'm a novice when it comes to aftermarket. Own an '06 GT premium convert, green. Interested in a more beefed-up sound; I gather the Flowmaster American Thunder is a good, fairly economical way to go? If so, does it matter who installs them? I am considering G&K Muffler in Marietta, GA thx

Got an 05 GT vert here, ordered the Flows and had them installed at the Midas shop on Johnson Ferry Rd. in Marietta, very happy with the results.

Flowmaster axleback sound okay

fartingchicken

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Casey4s

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kooldawg6

mine works really well and can take a fair amount

ElCid2006

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kooldawg6

mine works really well and can take a fair amount

bigcat

start with the upper hole, and if more traction is

fobra559

At least it's more erect and not floppy anymore.

Fast05

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RedDot

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JP3stix

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RedDot

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whyask

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spectre30075

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Flowmaster axleback sound okay

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start with the upper hole, and if more traction is

At least it's more erect and not floppy anymore.

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