Where are you seeing that? My route involved welding 1/2" spacers to the oem plate, MLA solution is similar, but his weld is hidden (guessing a cutout on the plate allowing a backside weld).
You could thru bolt the Wetsounds base thru the spacer into the oem plate if you wanted, but I would for sure want a nut on the inside.
I had custom brackets I designed machined for mine, and now I'm having a hard time remembering if I was able to put a nut on the inside of the threaded plate. I'm pretty certain, if you thru bolt, the spacing is just enough to let you get a nut on the inside.
Last edited by dusty2221; 02-05-2017 at 12:07 AM.
2006 Supra 20 - Sold
2006 Supra 24 Gravity Games - Sold
2015 Supra SE450 - Sold