Touche, but as I mentioned, I'm sure the exhaust systems are still different even between the 4.8 and M. We'll call it even for you posting an E53 hitch installation on an E70 X5M specific subforum ;)

I don't know if you ///M guys will have to drop the last section of the exhaust or not to install, but if you do, fire it up and give it a bit of pedal. I bet it will sound aggressive. Maybe even record and post the sound. ;)

pics/update on brake lights
 

Here are some better pics of the hitch and trim ring. I was able to put an older trailer module (hardware version 1) in and the brake lights work.

nice photos, it's interesting. did the back up cam' know there was a trailer? what's the white logo behind the car on the screen?

do you have any photos of the full car and the seadoo ? ( just random views )

Just an FYI...I picked up an adjustable hitch at Harbor Frieght for $30, worked awesome towing my 6x8 trailer (fully loaded with motorcycle, mechanic AND construction equipment, etc) from Boise to Seattle and back with random places in between.

8-in-1 Adjustable Ball Mount Hitch

does anyone have anymore info on this ? part #'s maybe ?

my dealer swears that there is no hitch made for the m !

is it the same one from the e70 ? where do i get the trim piece ?

any help appreciated !!

Part List
 

Here are the parts list.

Trailer Hitch Kit (PN: 71 60 2 156 525)
Trim Piece Kit X5M (PN: 71 60 2 185 556)
Blind rivet (Qty 8) (PN: 07 14 9 140 786)

Just remember the current software for the hitch module has a problem with the brake lights not working.

I was able to take a module that was programed in a 2009 X5 and it worked in my car.

FIXED... New software version from BMW (from Oct if I remember correctly) fixes the brake light issue. 4-5-11

thanks joe , your the man im gonna shove this info in their face !

Did you upgrade to the ///Monster?

yesssir !! woooohooooooooo