Borla Axleback Repair?

Discussion in '2007+ Mustang GT500 Tech' started by Scott88, Mar 21, 2020.

  1. Scott88

    Scott88 Junior Member

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    The mount for the Borla axleback exhaust broke (see pic). Now its clanking around back there, moving with even the smallest bumps in the road. Is this a simple weld job, or should I look into extra reinforcement? Is this common enough where I should reinforce the other side too as long as I have it up? 20200320_192346.jpg
     
  2. 86GT351

    86GT351 forum member

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    Any Exhaust Shop should be able to secure for you.
     
  3. MrAwesome987

    MrAwesome987 forum member

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    Yeah that's a 15 min job at best.
     
  4. oldVOR

    oldVOR forum member

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    Just make sure they know how to weld stainless.
     
  5. MrAwesome987

    MrAwesome987 forum member

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    You can weld stainless with a normal mig welder and plain wire. That's likely what any exhaust shop will do.
     
  6. 06 T-RED S/C GT

    06 T-RED S/C GT forum member

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    Just an FYI, if your the original owner of the Borla axle-backs and also have your original sales invoice? Borla will replace them under warranty. Anyhow, just saying.
     
    Last edited: Mar 21, 2020
  7. Scott88

    Scott88 Junior Member

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    Thanks for the collective knowledge. Seems simple and straight forward. Just wanted to confirm I wasn't missing something?
     
  8. Iceman62

    Iceman62 Bullitt 6005

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    Unless the other side's showing an issue, I'd just fix the broken mount. If you have an exhaust shop do the work, tell them to give both sides a once-over, for good measure.
     
  9. oldVOR

    oldVOR forum member

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    While you can weld it that way, it's no where near as effective as doing it the right way.
    Short cut repairs end up being short lived repairs.
     
    KRS likes this.
  10. MrAwesome987

    MrAwesome987 forum member

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    I would disagree with it being short lived. I've welded, and seen welded, many things like that with no issues.
     
  11. Juice

    Juice forum member

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    I have welded many exhausts, both SS and aluminized. Using plain shield core wire. The only downside is the weld gets a little rusty looking vs the SS pipe.
     
    MrAwesome987 likes this.
  12. oldVOR

    oldVOR forum member

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    You can disagree all you'd like, however, the fact remains that welding with dissimilar filler will not last as long as welding with similar filler.

    Correct, it will rust and be more prone to cracking due to the dissimilar metals.
     
  13. MrAwesome987

    MrAwesome987 forum member

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    I would be shocked if any muffler shop would actually weld that with stainless wire vs standard wire. A good weld on that with plain wire will outlast that muffler and maybe the car.
     
    MrBhp likes this.
  14. 06 T-RED S/C GT

    06 T-RED S/C GT forum member

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    Is the OP aware that Borla will replace the mufflers under warranty? Therefore why even bother taking his car to a muffler shop when he can get brand new replacements at no cost to him under warranty with the only exception of perhaps being required to pay for the shipping costs :shrug:
     
    Last edited: Mar 22, 2020
  15. Scott88

    Scott88 Junior Member

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    I'm not the original owner, so the Warranty won't be honored.
     
  16. 06 T-RED S/C GT

    06 T-RED S/C GT forum member

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    Had no way of knowing that until just now.
     
  17. KRS

    KRS Junior Member

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    In my opinion if you just butt weld the hanger back together it will most likely just break again. I’d find a piece of stainless rod about 6” long and about the same diameter as the existing hanger. Have the shop bend the rod into a hook shape to fit along side the exiting hanger, overlapping the break. Then weld them together.
     
    Last edited: Mar 23, 2020
  18. Coosawjack

    Coosawjack forum member

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    ^^^THIS!!^^^
     
  19. Rick Simons

    Rick Simons Member

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    I would be looking for the cause of the breakage; to me the repair is the easy part. did it break adjacent to a weld?
     
  20. Scott88

    Scott88 Junior Member

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    I was wondering the same thing. It looks like it broke just above where the weld stops and the "hanger" separates from the pipe. I don't remember hitting any bumps or anything that might cause the break other than just wear over time.
     
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