And the skills to make those custom parts he speaks of? We all have those.
There are at least 5 other IMS replacement offerings I know of he didn't mention. All with varying characteristics.
The investment to create a bearing assembly, test it, create tools and instructions that facilitate it being done by someone who never has done it before are worth something. To say nothing of warranty expenses and customer service costs. Maybe not to the video producer. I happened to be in touch with the guys who first created the replacement kits when they were destroying bearings and engines in their quest for the right one. They were a long time recovering those sunk costs.
I've owned 2 Boxsters. One a dual row, one a single. I totaled the first car without having replaced the IMS. Someone got a low mileage engine probably when the insurance company totaled the car. I didn't replace the second one, it was still in the car at 90k last I heard.
What is your risk tolerance? How would you feel having replaced the bearing assembly and something else takes out the engine or car? How would you feel if the bearing failed and you hadn't replaced the assembly? How long do you think you will keep the car?
A great replacement will add value but not the total cost of the replacement. A good replacement will help sell the car quicker. If I were to replace, I'd go great or at least with one that had many thousand known installs.
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