I took a quick drive to my friend's house while treating the car like it is in the break-in period and boost no higher than 2 PSI, half throttle, and keeping the revs below 4k RPM.
https://drive.google.com/open?id=0B1...UjA&authuser=0
For comparision, here's a log taken BEFORE the maintenance work was performed.
https://drive.google.com/open?id=0B1...XzQ&authuser=0
From brief observation, post-maintenance engine idle is a bit higher between 725-800 RPM on average. However, A/F correction seems to be greatly improved (around 105% or so) after about 25 miles total driving. Slight idle bounce exists, but it doesn't seem severe enough to throw a code. There's absolutely no roughness, so engine feels pretty smooth.
Before maintenance, the engine idle was intermittently rough (felt like misfire) and shows up as slight bounce. I was already wondering about potential leaks before performing the work.
