The hardware I've put together so far from Home Depot; I've got 35mm for the sides that fit flush and 40mm/45mm for the middle section with some spacers to account for the gap in the front rather than trim the bottom of my bumper and flex the splitter too much. I'm using some large washers for added support and to distribute the load along with some neoprene washers to cushion the carbon fiber. Might be a little overkill but meh.
8 bolts total-35mmx4 on the sides, 40mmx2 for the middle and 45mmx2 between the middle and sides. All fit in stock locations. 3/4" spacers on the 4 front bolts to keep keep a nice straight front edge and not bend the splitter. I also wrapper the spacers in carbon fiber vinyl to match the splitter.


The test fits looked promising but some trimming to the rear corners of the splitter will be required because it would stick out too far for my taste.


With the splitter masked off to protect it I was able to align and drill the stock bolt locations. I could drill 2 more but I think 8 is sufficient.

More test fitting coming along well.





Final fitting with 3/4" spacers on the 4 front bolts. Looks like it's ready for clear coat.



Finally done.



