2010 WRX STI

The STI has the longest log of the three. Every part that’s gone in or come out is written down with the date, the mileage, and what changed, so when a new noise shows up I can see what was touched last. Most of the entries are driveline.

Rule I learned the hard way: change one thing at a time. Do the tune and the clutch in the same week and you’ll never know which one made the noise.