Been running Fast intentions test pipes for about two months and running into problem with bolts keep coming loose where they connect to stock manifold. I guess this is a big problem with all the vibrations and heat?

From my research I found to try Nord Lock washers? I don’t think Loctite would do anything with the high temp. Any help more suggestions thanks

 

Serrated flange bolts, maybe?

 

https://www.nord-lock.com/en-us/

Used these on my SR20 downpipe, which are notorious for backing off, not a single issue in 5 years.

 

That’s what I’m running. If come lose again I’ll just throw the Nord-Lock Washers on

 

5 years. Sounds good to me. Thanks

 

Fuji Locking Nuts are what I've used on my motorcycle header.

https://www.fun.co.jp/english/products/u-nut.php
https://www.mefaco-intl.com/fujilok-u-nut/

 

never heard of these before