I have made sure to have a fair amount of clearance and some high temp peek plastic to make first contact if there is any. I have also learned from previous vehicles and exhaust mods that you can wrap a stainless steel hose clamp around the rubber muffler mounts to control the motion without any additional vibration. I have thrashed this setup around quite a bit without any scratching or clunking noises. The motion I do notice is an overall elongation of the system when it heats up. The tips will protrude out an additional 1/2 inch from cold to hot.

 

the more i look at this, the more i want it. reminds me of an LFA style outlet.

 

Nice. mission successful then.