If you just want the tips I have them available new HERE

http://c1552172.r72.cf0.rackcdn.com/42961_x600.jpg

ah ecs to the rescue....

I thought he meant full exhaust system, guess the tips are cheaper

It'll take a little work to fit them on the non 4.6 and 4.8 mufflers as those have mounting points designed for the wide oval tips but I've seen it done a few times before. Looks great and isn't going to change the sound of the current exhaust.

eBay has those tips bmw e53 tip | eBay

ecs i would love to buy those but the problem is i live in cali and your office is far. One more question if i take the resonator is there any danger to the car or nothing changes.

^ There should be no danger to the car. Afterall, it's just a sound deadening (spell check?) device.

We ship all over the world, so I'm only a few day away ;).

Removing the resonators just going to change the sound of the exhaust.

I am going to do some measurements tonight, I may be trying a set of 4.6is looking tips from magnaflow, approx 60 bucks each (maybe less), they will need to be welded on. I'll post up a link later on.

Gotta have some other options for 3.0s haha!

do you know the idle rpm for it does it get to high or is it stable?

Little lost in your question, but the X5 should have a pretty smooth idle.