MAC Prochamber Question (Not Sound or Performance Related)

[highvolts]

Anyone know the thread/nut size of the studs and nuts included in their kits?

Thanks in advance..

Jason

 

[madmatt]

Man, I wanna say like 15 or 18 mm...damn I cant remember and its too cold to go look.

 

[TweekedGT]

Mine were 15mm coarse thread. I just attached my Magnapacks to my Prochamber a few weeks ago.

 

[highvolts]

Mine were 15mm coarse thread. I just attached my Magnapacks to my Prochamber a few weeks ago.

Sweet! Thanks! I think the studs that come with the prochamber are towards the cheaper line of screws. i wanna replace them with a higher grade fastener and put nuts on the back side of the stud that screws into the flange..

-J

 

[TweekedGT]

I think they come with grade 5. If you want better go with grade 8. They will more than do the trick.

 

[highvolts]

I think they come with grade 5. If you want better go with grade 8. They will more than do the trick.

You really think its at least grade 5? I felt one get loose really easy and i KNOW i didnt cross thread it.. Maybe the nuts are grade 5 and the studs are 3.. i dunno i'm gonna replace the 4 studs n stuff that hook upto the catback