Loose or missing downpipe studs aren't an uncommon problem for mk2 Focus ST or mk2 Focus RS owners, but that doesn't mean you have to run the risk of this happening to you!
mountune are able to supply a specialist Downpipe Locking Fastener Set that, due to a unique patented design, makes the loosening of the downpipe bolts impossible.
The unique washer locks in place against the downpipe and is then itself locked in place with a circlip. Once fitted it is impossible for the bolt to turn anti-clockwise and loosen, but is reversible should the downpipe ever need to be removed.
Must have item , vibration on any vehicle is a problem , once fitted don’t have to look at it again absolute no brainer