Ditto this. I ran a bypass filter on an 05 PSD 6.0 many years ago. It was supposedly a 1-micron filter made of tightly wound cotton fiber. The filters were very expensive and I changed them every 20k miles. I had the oil analyzed before installing the bypass and, other than some fuel dilution, the factory filters did a very good job. The analysis after the bypass was installed showed very low insolubles and exceptionally clean oil. It was still black, like all used diesel oil, and the bypass did nothing for fuel dilution (it didn't advertise that it would). After a few years, I ended up removing the filter kit and selling it to a buddy with a 6.0 Excursion. I realized the cost of the filter media was just too expensive for the slight possibility of less wear.If it was a diesel that got lots of soot in the oil then I would think about it. I ran the Amsoil dual bypass on my Liberty CRD.
It never totally cleaned the oil though. It's not like i was pouring out honey colored oil after 5k miles, it still looked like black death.
In summary, I can't imagine that a bypass is a good use of money on a daily driver gas engine. Especially a Toyota V6 that, with regular maintenance, will surely outlive the rest of the vehicle. Spend that money on something more practical, like more tools...