Questions about Roof Rack Cross Bars/Rails/Slats

lionel

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As mentioned under Port Installed Options, Toyota is charging $420 for these Cross Bars:

1764811514172.png


As it happens, my TRD ORP came without them, which is fine given the outrageous price. However, I do sometimes want an attachment point for a ski rack such as this:

https://www.amazon.com/BougeRV-Lockable-Snowboard-Extension-Snowboards/dp/B0C8J1XX4B

I notice that Toyota lists a Cross Slat Assembly and related Service Kit on its Accessories page:
1764812346142.png

That's right, no images! So, what are these if not the same thing that is sold as a PIO? Does anyone have any photos? Even assuming two of each are needed (but is that true?), that's still just around $280 – a lot less than the PIO. Especially if they're a simple DIY job.

Does anyone know anything about these and their dimensions? How about wind noise and resistance?

FWIW, the ski rack linked above shows the following fitment options:

1764813169846.png


The "aero tube" looks most preferable, assuming they're quietest (load-carrying is not a big concern for a ski rack with a couple of pairs of skis).

So, what are the dimensions on the various choices for Cross Rails on the 4Runner?
 
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