Once I got all my parts ready I couldn't wait no more, this mod doesn't require nice weather especially if you have a garage.
The job took me around 2 hours (most of the time I spend replacing the Air bag cover)
Parts if you planning to do the same:
$584.55 - 32306795204 - M Steering wheel (brand new from the dealer)
$103.58 - 32307839474 - M Steering wheel cover (brand new from the dealer)
$198.13 - 61319239903 - Multifunctional switch (controls) (brand new from the dealer)
$2.43 - 32306769431 - 3 Saucer-head screws . M4X14MM (brand new from the dealer)
$1.62 - 32306767225 - 2 Saucer-head screws . M4X14MM (brand new from the dealer)
$36.00 - Sport Air bag cover (used mint condition) from eBay
You probably don't need multifunctional switch and screws if you just upgrading from regular sport wheel, I upgraded from the older one.
I used following DIYs:
For Steering Wheel swap:
Msport Steering Wheel DIY
For Air Bag Cover swap:
http://www.bimmerfest.com/forums/sho...d.php?t=743929