Last time I was at Thunderhill West, it was a year ago. Everything felt unfamiliar to me. This was also the first time I used the Bilsten B6 setup here. With recent sway bar changes, the car was quite difficult to drive. It understeer at slow corners like T7, T9 at entry but oversteer at exit. The new brake pads are also bite a bit too much, made it difficult to trail brake, makes the understeer even more difficult to mitigate. This is also the first time in a few years that I improved my lap time in the afternoon session as I was spending the whole day to get used to this new strange handling. While it wasn't a fast setup, I had tons of power slides throughout the day and get 2 black flags for doing those. It was a fun day.

Mods

245/45/17 GT Radial SX2 45 heat cycles.
Enkei TSV 17x9 ET45
Bilstein B6 with Tein H Tech springs, front pedders tophat and double camber bolts, front bumpstop replaced with Bilstein E4-AP2-Z118A00. Rear OEM bumpstop was trimmed by 1/3
Perrin 19mm front sway bar, stiff slot
Blox 17mm rear sway bar, mid slot
SPL RLCA (pre-weight saving version), mounted at higher holes.
Camber: -3.5/-2.5 F/R; Toe: 0 / 1/32inch F/R
AP Racing Endurance front BBK with Powerstop Re-manufactured PP rear brake. Endless CC43 brake pads
Verus Rear diffuser
Mobil1 0w40 FS, SYMS oil pan, 0.7qt overfill over max line. 
CANMIM oil pressure data injector kit designed by me.