[FL911]

"I will not be spending countless hours of work replacing it every 40-50,000 miles is that a good enough reason for you?"

No, because the stated replacement intervals for the LN bearings are now 50,000 for the single row, 75,000 miles for the dual row. I have not seen recommendations for the new "Pro" dual row replacement for the single row bearings, but with 90% more load carrying capacity than the OEM single row, it should also be able to go more miles. Check their website if you don't believe me.

So, Yes, "replacement intervals" does indeed mean that the bearing will need to be replaced.

"A total tear down to install the "Solution" is not the answer for me."

You do not need a total tear down to install the Solution, it goes in the same as the other retrofits, and it is permanent. Yes, you read that correctly.

That is a solution that I like but it is way too much $$$$$!

"Do you really think that oil that lubricates the entire head assembly is too dirty and hot to sufficiently lubricate the IMS bearing? Do you think the oil that "splash" lubricates the bearing is any different? Do you really believe that you can inject too much oil into bearing?"

Yes to all three. There has been considerable discussion about this on multiple forums. Do a search and you will find hours of reading, pro and con. It is very hard to argue with the large numbers of successful splash lubricated LN ceramics, plus there have been comments about the potential issues of too much oil from bearing engineers. You might want to also note that the people that developed the DOF system released a strangely designed adaptor to go under the oil cooler to supply oil from somewhere other than the cylinder heads as a remedy to the hot, dirty oil issue. Only problem is that height of this adaptor appears to require running the smaller base engine oil cooler to fit under the intake on the 986 engines. Opps.

The adapter I have seen as well, I personally think it is simply to improve on the current design.

At the end of the day, it is your car, and your money; so you can go with what ever floats your boat. But as a shop owner, I have to go with what I know works and survives in the real world.

I agree with you, but what works and survives still needs to be replaced at required intervals. I may have to buck up for the Solution.
Have you installed any of them?