Danielsand: Sorry but I think you will find the E70 X5 doesn't have a model with twin mufflers that go through the bumper UNLESS it's an M SPORT. The twin mufflers I have seen ONLY go under the bumper.

E53 Models prior to the E70 go through in twin but not 2007 onwards. My point was that the gap looks WAY too big to be standard and under no circumstances would BMW finish their cars so that you could see the thermal wrap and they wouldn't make it shorter either as things would surely melt. Also, I've looked and the bumper is the same on all models apart from the M sport.

Surely there must be some kind of clip that goes round the V8 exhaust?