Catback to Downpipe studs/bolt size?

[MGrizzard]

Installing my MBRP Catback today and out of fear of breaking the studs or bolts on the downpipe I want to buy replacements before I begin. What size studs and bolts do I need?

 

[poziax]

I would also like to know this. I spent way too much time today trying to free those bolts. I think I'm going to have to cut them off. (I also got the MBRP catback btw)

 

[grnmachine02]

Bump. I need to know this as well. My downpipe to catback studs were mangled/cross threaded.

 

[phez]

Anyone know the factory bolt part number ? Bolt size?

 

[Jabbit]

Anyone know the factory bolt part number ? Bolt size?

https://whoosh-motorsports.myshopify.com/products/arp-downpipe-stud-and-nut-kit-fiesta-st-2014

 

[phez]

The are M8 X 30 1.25mm thread.

 

[Apollo43]

The are M8 X 30 1.25mm thread.

They are NOT 1.25 mm. Maybe the turbo to downpipe studs are, but the downpipe to catback studs are what the OP asked for. These are 1.5 thread, FWIW. Just don’t want someone to ruin anything because of a misunderstanding. Sorry to resurrect an old thread.