bolt size for the new Coyote shorty header flange to the straight pipe?

[Jester]

Quick question

I have the new BBK ceramic coated shorty headers for the Coyote engine and I have modified the straight pipes to fit to the side pipes - just need to know the proper bolt size & thread for the header flange to the straight pipe.

Well done to the FFR design team and manufacturing team for the new coyote headers - very high quality and adds a nice visual to the engine!.

Thx

[Jester]

I have just confirmed the bolt is metric 12mm 1.75 thread.

[ClemsonS197]

Pictures of this mod?

[Jester]

Ok - I will post when I get the time this weekend