[A4] Pre-chip checklist

[James Hanson]

Hello,
Planning on having my 01 1.8T chipped next week.  It's at about 115k
miles.  What should be done to it before then?  It is up to date on
maintenance, and I've replaced all visibly worn hoses.  Aside from a
coolant leak that is getting fixed next week, it runs great and seems
to be in good health.

Company that sells the chip (getting an APR) also recommends
installing a TT diverter valve, which I will probably do since it is
only $45.

Is there anything else I should do?

TIA,
Jim