Great write-up by TwinsPoppa. I just did the running board conversion on my 06 and the job is pretty straight forward. However you will need at least 4 more rivets than 24 for the aluminum running boards. So buy plenty. If you have a Northern Tool outlet they have a rivet gun that works for only 6.99. You have to drill out (just slightly) the largest screw in fitting to accept the BMW plastic rivets. Go for it and then add the aluminum pedals.