I’m slightly weary of it as well, particularly because my audio system installer was the one who originally drilled two of the holes and they’re a little close to eachother for my taste.Yea, that through the B-pillar routing to the CCP is pretty slick. Not sure I am comfortable (yet?) with the possible compromise in pillar strength. (Not saying is necessarily a problem though). That spot is a highly visible area in my design that I would like to keep "clean" if possible as well a maximize the clearance. 🤷♀️ Decisions, decisions ...
but I think if you only had one or two holes (for a 4/0 wire and something else) that structurally it will be totally fine. There is a lot of boron steel in that pillar, and the main reduction in strength would likely be crushing vertically, so as long as I don’t roll over and land vertically on the roof I’m going to say it’s fine on my build. I have a a ton of aluminum extrusion, including directly behind the b pillar, so I’ll bolt that though into the pillar and consider that stronger than stock.
@Brandon see post #35
@PDub, if you're referring to the last picture - with all the electronics and batteries - it's just ahead of the rear wheel on the driver's side. It's actually a frame around the batteries and the electronics that's bolted to the back wall and the floor. Then the fridge box slides over it (and...