After several trips to BMW Parts and then Home Depot, I completed the install!
Tried & FAILED, will NOT fit through Revozport diffuser's hole:
- The fins that are supposed to attach to the Ground Effect Panel will NOT fit with the OEM exhaust.
- Diffuser: BMW Rivet, Part# 51-11-1-944-537
(as uncertainly referenced on this thread here:
http://www.1addicts.com/forums/showt...=623106&page=3)
- Diffuser: BMW Rivet (same used to attach OEM diffuser to bumper), Part# 51-11-8-222-901
- Diffuser: BMW Hex Screw Nut (same used to attach OEM diffuser to bumper), Part# 07-14-7-129-160
What actually worked:
- Attached Ground Effect Panel using 2 of 3 OEM bolts using 13/32 socket wrench (ended up not using the closest right socket for better alignment);
- Slipped on the rear diffuser via the clips and secured the left and right sides with...
2x "Stanley" branded 1/4" grip range and 3/16" diameter Aluminum rivets, which I used a riveter (~$10) to install.
Looking back, for the price of this thing.. I really wish the necessary hardware would have been included.
Hope this post saves at least one future purchaser from the senseless hardware search I had to go through.