V6 Performance Mods 2005+ Mustang V6 Performance and Technical Information

AT Flowmaster Exhaust rattling........

Old Nov 12, 2006 | 04:43 PM
  #1  
Alloy 07 RN's Avatar
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Exclamation AT Flowmaster Exhaust rattling........

My American Thunder exhaust is rattling when I turn on the car and when I put her in reverse. It's embarassing.....
I'm guessing it's the clamp. No, I still haven't changed the clamp . I know, I know......
I've heard about how sucky flowmasters clamps are. Will a new saddle clamp fix my problem?

Thanks!
Attached Thumbnails AT Flowmaster Exhaust rattling........-mustang-2007-044.jpg  
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Old Nov 12, 2006 | 05:46 PM
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Originally Posted by Alloy 07 RN
My American Thunder exhaust is rattling when I turn on the car and when I put her in reverse. It's embarassing.....
I'm guessing it's the clamp. No, I still haven't changed the clamp . I know, I know......
I've heard about how sucky flowmasters clamps are. Will a new saddle clamp fix my problem?

Thanks!
YES! Unless it's the baffle, then no... I used the saddle(U-bolt) clamps from the start and no problems at all
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Old Nov 12, 2006 | 05:52 PM
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Originally Posted by SteelTownStang
YES! Unless it's the baffle, then no... I used the saddle(U-bolt) clamps from the start and no problems at all
Can I see a pic of what clamp you have installed? I've gone to my neighborhood car shop and I've seen some sucky/cheap looking U bolt clamps.
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Old Nov 12, 2006 | 06:46 PM
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Originally Posted by Alloy 07 RN
Can I see a pic of what clamp you have installed? I've gone to my neighborhood car shop and I've seen some sucky/cheap looking U bolt clamps.
Those sucky/cheap clamps are the ones. You can get a stainless one from Summit if you want.
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Old Nov 12, 2006 | 07:15 PM
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Originally Posted by NJ3
Those sucky/cheap clamps are the ones. You can get a stainless one from Summit if you want.
Yep, those are the ones.
Thanks NJ3.
Will buy one tomorrow.

THANKS!
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Old Nov 12, 2006 | 07:55 PM
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[quote=NJ3;779249]Those sucky/cheap clamps are the ones. You can get a stainless one from Summit if you want.[/quot

+1. That's the ones...
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Old Nov 12, 2006 | 08:02 PM
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Another question....

Should I place the new clamp in the same spot as my current clamp?
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Old Nov 12, 2006 | 08:10 PM
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Attach them at the very end of the mufflers(next to te nubs) where it meets the OEM over axle pipe and torque down. I did not get the SS clamps... I believe that I paid $3.00 for both. No one will see them... If you're worry about appearance, then paint them black to match the mufflers. That's what I did
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Old Nov 12, 2006 | 08:18 PM
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Thumbs up

Thanks man!
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Old Nov 14, 2006 | 01:34 PM
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I installed the Flowmaster AT axlebacks on my new 2006GT.. same story.. after about 500 miles, I was getting a consistent metallic vibration @ 1400 RPMs.. thought is was a heat-shield or something. So took it in to local Ford Dealer. They pegged the vibration to my Flowmasters, and were able to pull both mufflers back off the over-axle pipe! You can't torque the supplied brackets down enough. One question: the U-bolt discussed above: any concerns about crimping the pipes with these? I was going to get a good pair of SS band clamps.. thoughts?
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Old Nov 14, 2006 | 02:49 PM
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Originally Posted by DoctorQ
I installed the Flowmaster AT axlebacks on my new 2006GT.. same story.. after about 500 miles, I was getting a consistent metallic vibration @ 1400 RPMs.. thought is was a heat-shield or something. So took it in to local Ford Dealer. They pegged the vibration to my Flowmasters, and were able to pull both mufflers back off the over-axle pipe! You can't torque the supplied brackets down enough. One question: the U-bolt discussed above: any concerns about crimping the pipes with these? I was going to get a good pair of SS band clamps.. thoughts?
I torque'd mine down so much that the bracket that the U-bolts sliped through bent on both clamps and still did not crimp the mufflers. Still no leaks, no rattles, no headaches...
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Old Nov 14, 2006 | 09:52 PM
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ARI.............how do you like the sound of the AT's??
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Old Dec 14, 2006 | 01:45 PM
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Finally switched the clamp to the U-bolt clamp.
What a difference....... No rattling what-so-ever.
Thanks guys!!!!

Slowjoe24- I love the sound of my American Thunder Exhaust.
I would definately recommend it. Just make sure you buy a u-bolt
clamp because Flowmasters clamp suckkkkkkk!
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Old Dec 14, 2006 | 03:53 PM
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Originally Posted by Alloy 07 RN
Finally switched the clamp to the U-bolt clamp.
What a difference....... No rattling what-so-ever.
Thanks guys!!!!

Slowjoe24- I love the sound of my American Thunder Exhaust.
I would definately recommend it. Just make sure you buy a u-bolt
clamp because Flowmasters clamp suckkkkkkk!
What took you so long...lol
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Old Dec 14, 2006 | 06:10 PM
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Originally Posted by Alloy 07 RN
Finally switched the clamp to the U-bolt clamp.
What a difference....... No rattling what-so-ever.
Thanks guys!!!!

Slowjoe24- I love the sound of my American Thunder Exhaust.
I would definately recommend it. Just make sure you buy a u-bolt
clamp because Flowmasters clamp suckkkkkkk!
Okay,,,,,thanks for the info. Did you use an X or H Pipe??
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Old Dec 14, 2006 | 10:05 PM
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Originally Posted by slowjoe24
Okay,,,,,thanks for the info. Did you use an X or H Pipe??
My car is stock.
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Old Dec 15, 2006 | 07:08 AM
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Single axelback only..........
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Old Dec 15, 2006 | 08:12 AM
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Originally Posted by slowjoe24
Single axelback only..........
YEP... FOR NOW.

WILL DUEL SOMETIME NEXT YEAR.
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