[hybrid_eg]

thought i'd comment.. just did this last night in under 15 minutes the other night with BMW Motorsports piece..

Gentleman Jack on Rocks is optional

I used a panel removal tool to remove 4 plastic clips holding the center section of diffuser. In the middle you have three heavy duty bolts, will need star impact socket to get them off and little bit off pressure as they have thread lock.. Once hardware is out, simply wiggle the unit down and inward towards front of the car to slowly release plastic tabs holding it to upper section of diffuser.. (painted part).

The OEM unit fit like a glove, align it all back together and reinstall the hardware.. I WOULD RECOMMEND GETTING NEOPRENE BLACK WASHERS for heavy duty bolts so you dont have direct bolt to carbon contact..