I have a 182 style exhaust on my 172 and it means a pipe goes sideways accross the back of my car behind the rear bumper to provide the second exit on the drivers side. There isn't much room between the bumper and the spare wheel well, so the exhaust can rattle against the spare wheel well at low revs. I was thinking of wrapping this bit of the exhaust in some heat shield exhaust wrap to stop the vibration. Can anyone see any issues with this? I assume temperatures right at the end of the exhaust will be a lot less than up at the manifold end so I shouldn't have any issues with hot spots?