The Beast MK4
When my builder was making my cat-back system he whipped off a wee bit of the heat shielding on my car that was causing him a bit of grief. A few months back he took the rest off as it was rattling and pretty 'shagged' in terms of condition nearer the backbox. There is plenty of clearance between the box and the body. It doesn't really get too warm on my journeys anyway but was this unwise? Are there regulations concerning it?