Skunk2 downpipe fell off

Discussion in 'Exhaust & Downpipes' started by Tripcannon, Jan 9, 2019.

  1. Tripcannon

    Tripcannon New Member

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    I installed a full skunk system on my fb6 about a year ago. No issues until yesterday i was heading to school when my downpipe came unbolted from the block (while sitting at a red light). I didnt have time to pull the cowl and see exactly what went wrong but im assuming the studs either snapped or bolts vibrated out. With that being said does anyone know the bolt/ nut sizes? Theres 2 studs up top and 2 bolts below. Should i replace the regular nuts with lock nuts to prevent this from happening again? Thanks guys
     
  2. webby
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  3. Tripcannon

    Tripcannon New Member

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    Yes thats exactly the diagram ive been looking for thank you. Have you ever seen an issue like this before? Im guessing the culprit would be vibration. Id assume you really have to slam something hard to snap those studs
     
  4. squiggy
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    If you have other power mods, they can cause excess rocking of the engine putting stress on the studs. This issue can be alleviated by upgrading at least the lower rear motor mount.
     
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  5. dpetro1

    dpetro1 Well-Known Member

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    I was expecting you to say the welds cracked and the pipe fell off, I've seen a few users with that issue.

    As for the thread pitch, the diagram gives you the diameter (m8) and length (27mm). What it doesn't give you is the pitch which is 1.25 in this case.
    So m8x1.25 with 27mm length. The bolt head itself (wrench size) is 12mm.

    Sent from my SM-G920V using Tapatalk
     
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  6. Tripcannon

    Tripcannon New Member

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    I was wrong about it coming unbolted. @dpetro1 nailed it. Welds snapped off. Skunk is sending me another downpipe but im still disappointed. Besides the exhaust i have flashpro, skunk cai, rbc swap, and rdx injectors. Should i still upgrade the mount?
     

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  7. dpetro1

    dpetro1 Well-Known Member

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    Common failure on the skunk2. Honestly, I would be hesitant to install another one. You will just run into the same issue.
    Get a quality downpipe like full race or rv6.

    As for the rmm, definitely worth it.

    Sent from my SM-G920V using Tapatalk
     
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  8. Tripcannon

    Tripcannon New Member

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    At least im not the only one. If i can sell it and get another one that would be ideal. Im thinking with a 3" coupling i can rig it up for the meantime
     
  9. squiggy
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    It has happened with both of the brands as well...just not very often.
     
  10. squiggy
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    My initial assumption would have been the welds, but I assumed you looked and saw it was the studs. It wouldn't hurt to add a mount. It would be an inexpensive bit of insurance. Also, it reduces wheel hop.
     
  11. bfaided1984

    bfaided1984 Active Member

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    Sounds like typical Junk2. Surprised you haven't already done a rear mount with the other stuff you've done.
     
  12. Flightmaster127
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    Flightmaster127 Supporting Member

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    For the price the rear mount is one of the best upgrades you can do.
     

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