[F87source]

Originally Posted by armiii

this ?

https://www.ecstuning.com/b-vargas-t...t-s55-cbc~vtt/

Did you do that your m2c ?

I don't have an m2C. But yes those are the CBC made by VTT to prevent the bolt from backing out.

But like I said before if you're under warranty I would bother with this until the warranty is nearly over.