Originally Posted by C ///M
Why do you say they need new hangers welded on? Don't they just need new studs pressed in?
Sorry, I am not yet familiar with the M3's muffler hanging system.
those inner hangers yes just need new studs, but also a hanger to go through the middle/center hanger itself. I only say it needs new studs as some of the threads look bad and one broke off, but you can really just weld new hangers right to the bracket.
If it was me, I wouldn't even change the studs, just mount the mufflers, drive to a muffler shop, and just have them weld two new hangers to the muffler brackets. Very simple.