I'm sure it will provide sufficient vibration isolation and flexibility to allow the exhaust to move as required in use, but I will keep an eye on it to make sure it is holding up. And as you point out, most exhaust systems are suspended on rubber, but the original Mini bobbin I believe was intended to suspend the exhaust in tension rather than to be used under the exhaust in compression as on our cars, and with nasty shear and torsional loads if the exhaust and chassis brackets are even slightly misaligned or out of parallel. there should be two rubber bobbins on the rear mount of the exhaust and mid join looks like its just a threaded bar welded to the box.

Wrightpayne - It might give more flex without the washers but I think from the feel of it that the flex is about right. Yep as every body has said the very rear should have 2 of those rubber bobbins at the rear with preferably a metal bar bewteen the two that they hang from this metal bar then just screws directly to the subframe! The leaders of the local classic club happened to have both of the subframe mounts laying around so he let me have them.Moz's comment about rubber products sounds familiar - I changed the steering rack gaiters for boxed and branded QH ones last year and they're already starting to go at the edge. I'm not worried about the lack of centre support - with the cat fitted I've actually stood in it the centre (and I'm quite large!

So far I'm quite happy with the way this has worked out and a lot less worried than I was about using a single mounting point for the silencer.I think this is just a box which has been modded to fix the exhaust system Not sure if you can fix it without making new exhaust mounts. you're not imagining it, there is a rubber lip between the arch and the bodywork, it is like a U and pushed onto the arch and stayed there on it's own. The rear silencer doesn't come far enough forward to pick up on the centre mounting bracket neatly (the bracket aligns with the clamp that secures the silencer to the collector). muxh free movement available that this would mean moving beyond the point where the original bobbin would have been badly damaged anyway). The idea being to replace the rubber bobbin with a set of rubber bushes above, below and between with a solid M8 8.