Echo 360 TES damaged muffler thread

[french man]

Hello everyone.
My 360 tes had the muffler unscrewed but I didn't realise something was wrong.
I lost the screws and the threads are completely flat.
I'm thinking at putting a helicoil to repair it.
What kind of loctite should I put to avoid worse damage?
Thanks

 

[Chevboy0167]

Put this on the Helicoil or insert to lock it to the cylinder.

https://www.vibra-tite.com/threadlo...t-lock-extreme-high-temperature-threadlocker/





Then use this to keep muffler bolts from loosening.

https://www.vibra-tite.com/threadlo...e-123-medium-strength-high-temp-threadlocker/