Only experience I’ve had is they aren’t going to pay anything for aftermarket parts. They might give you something if you recently did the head gaskets and also if you put new tires on.
I would just do a drain and fill. Let it run for 5/10 seconds. Let it sit if there’s any water it should be at the bottom. Drain off a little oil. Fill it and go get it hot ??♂️
X2 unless you go with a ball bearing unit, it won’t spool as good. You’re basically getting a larger turbine with the S400 and will make it lazier but more efficient
I would say HMS diesel but they’re usually backed up. Other than that if he can get it to Solano performance center in Fairfield I can make sure it’s taken care of.
I threw a banks intake on a friends stock LML and it made it much more responsive, not sure if they manipulated the maf a bit or if the filter just flows that much better but it was a solid gain.