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Old 11-04-2014, 04:31 PM   #1
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Borla Exhaust Issue

I just had Borla Cat-Back Exhaust S-Type (140515) installed on my 2013 Mustang GT. The sound is excellent. Anyway after the installation I had some squeaking and thumps when going over bumps. I decided to take the car to a local shop (not the one that installed the system) that specializes in hi-performance after market parts and has a mechanic that has installed many Borla exhausts. He showed me where the left pipe was actually touching the rear end pumpkin and the right pipe was pressed up against the floor above the axle. His comment was that he's been seeing quality issues with both Borla and Flowmaster since they started making them in Mexico. When the were US made he said he never ran into fit problems. Anyway, he cut 3/4" off the each pipe where they joined in the middle and was able to correct the issues. Just curious if anyone else has seen any issues.
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Old 11-06-2014, 02:10 AM   #2
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I have the Borla atak. Sometimes when I get on it real hard and heat up the exhaust I also hear rattling as if it's touching my floor on the passenger side. I've taken it to exhaust shops had them weld in new hangers and it helped but I still hear it from time to time. I've got under the car at least 5 times to see where my clearance issues were and there's at least 1 to 2 inches of clearance at the tightest spots so I have no clue where it's touching if its even the exhaust making the noise.
But it's only when it gets driven hard. I even had Borla replace my exhaust under warranty because I thought the inside of the exhaust came loose and even with a new exhaust it makes the same sound.
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Old 11-06-2014, 09:00 AM   #3
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Quote:
Originally Posted by grabber12 View Post
I have the Borla atak. Sometimes when I get on it real hard and heat up the exhaust I also hear rattling as if it's touching my floor on the passenger side. I've taken it to exhaust shops had them weld in new hangers and it helped but I still hear it from time to time. I've got under the car at least 5 times to see where my clearance issues were and there's at least 1 to 2 inches of clearance at the tightest spots so I have no clue where it's touching if its even the exhaust making the noise.
But it's only when it gets driven hard. I even had Borla replace my exhaust under warranty because I thought the inside of the exhaust came loose and even with a new exhaust it makes the same sound.

When you crawl under to look, is the weight of the car on the suspension and not jacked up off the ground?


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