My model of MX-5 is: 1.8 NC (2008) I’m based near: London I’m looking for technical help or recommendations on: I have the Klarius mid pipe repair piece for the NC, and I need the bolts that go between the mid pipe and the backbox. The hole in the Klarius is about 13.5mm, so M12 is the largest bol…

Back box bolt size - NC

MickAP 13 February 2024 13:15 2

Have a look in the link below.
Are the bolts/studs still in the OEM back box flange