S&S Motor Disaster Prevention Kit for a 6.7 Diesel, this will prevent metal shavings from the CP4 fuel pump from entering your fuel system, if it does it’s a 15k fuel system repair.
I had this installed in my F250 Superduty but two weeks later I needed to replace my turbo and the scope of work included installing the newer DCR pump.
Paid $435 for the kit and paid to have it installed ($300), but the real fix was the DCR pump replacement but is expensive.($3200)
3 weeks installed, so is in excellent used condition.