Best Brand for Parts? - Wheel Bearings

[steamship]

Just following up on this thread. Since I'm waiting on a new back window, I took the car to the mechanic and he checked out both front wheels to see if we did indeed cook the passenger side front wheel bearing. Both wheels exhibited no signs whatsoever of a wheel bearing issue, and ran free and quiet.

We also took it out for a drive and monitored the ABS sensors through various speeds, from a standstill to 60mph in 10mph increments. All four recorded identical readings at all times.

However... when I get to about 25-30mph, I now get an ESP fault warning on the DIS, as well as the orange warning light. Scanning it with VCDS reveals no stored errors, and cycling the ignition clears the warning light (until the next time). I never had this issue prior to changing the aftermarket suspension over, and unfortunately do not recall getting the error prior to getting the wheel alignment done (of which only one wheel; the front right; needed adjusting).

The one thing I have noticed since is that the steering wheel is not perfectly straight. Now, I removed it when doing the ACC retrofit, and had marked it up prior to removal. Is it possible that this could be giving the ESP fault if I somehow managed to fit it one spline out, as I've run out of ideas on what else could be causing it.