This thread had me thinking, you could easily complete this "mod" for $30 or less by simply cutting the exhaust before the bend and attaching a turndown with a clamp or welding into place. A quick search showed there's some nice stainless steel options. I'm personally not interested but thought...
I installed the Toyota OEM 6' Tonneau Cover today, part # PT954-35241. Looks great, appears to be the same as the Bakflip MX4. Took just over an hour to install, seems lighter than the MX4 cover for the 3rd Gen.
I ordered this one, took 2 weeks to arrive from China but looks and fits great!
CDEFG for 2024 Toyota Tacoma Center Console Organizer Tray for Tacoma 2024
For those of you wondering, this is how the Gen 3 long box bed mat fits in the Gen 4 long box bed. Could use minor trimming at rear of wheel wells and around the rear tie downs. I was also thinking to see if I can move the rear tie downs and attach them to the bolts securing the rear of the box...