Replacement running boards question..

[edco]

Best choice for Aluminum Running Boards
I'm interested in installing chrome running boards on my 06 X5 3.0. It does NOT have flared fenders or mud flaps.

There seem to be several choices on eBay and other sites like Bimmian and Bavauto, ranging from $500 for alledged OEMs (see http://cgi.ebay.com/ebaymotors/BMW-X5-ALUMINUM-RUNNING-BOARDS-X5-STEP-E53-UP-TO-2006_W0QQitemZ270275799277QQcmdZViewItem?hash=item 270275799277&_trkparms=72:727|39:1|65:12|240:1318& _trksid=p4506.c0.m245

to ~$300 for these http://cgi.ebay.com/ebaymotors/X5-BMW-BRUSHED-ALUMINUM-RUNNING-BOARDS-STEP-BOARD-E53_W0QQitemZ110290886322QQcmdZViewItem?hash=item1 10290886322&_trkparms=72:727|39:1|65:12|240:1318&_ trksid=p4506.c0.m245

I don't know HOW they are installed (self adhesive tape?, screws?, other?) and which ones folks have had good experience with..

Also, does it make sense to do any other mods (ie flares, mud flaps) at the same time..?

Thanks as always
ED in NJ