Installed the Aerofabb V2 Splitter today. I have a BAUN fmic and had to use 6x1.0 x 45mm in place of the 50mm bolts supplied. It just barely clears the fmic with 1 thread showing past the lock nut.
Just barely scrapes coming in/out of my garage.
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If it was me, I would use the second washer that you removed under those nylon-lock-nuts. Also, remove the bolts, attach them to a drill and round up the edge so that it is flush with the edge of the nuts when installed. I rather have a rounded edge hitting the bottom plate of the intercooler and sliding a little bit, than the rough edge of the threads digging into it and pulling the intercooler with it in the case of a hard hit to the splitter.It’s close but if you don’t tighten the hell out of the fasteners, maybe use a little blue locktight on the center 6 bolts ( using 45mm length) you will be ok.
I also opted to not install 2 flat washers as well. Just the first flat washer on the bottom side of the splitter. So- bolt, washer, splitter, spacer, bumper, spacer, brace, nut.
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