1.6mm body thickness on the 304 s/s magnaflow 2" I/d So u could mount it off 4" accuseal clamps adapted, aluminised steel. Suss out the magnaflow website and epe website. Check what you need. I would recommend 2" I/d 4" o/d muffler 16" long. Will remove any high end frequency and make it sound low down. Cost price.