I forgot to hit record on my GoPro but glad PDR saved the footage. Previous PB was a 1:55.6 and the most significant upgrade compared to last time are the @VerusEngineering front splitter and canard as well as the @aprperformance719 GTC-500 wing. 

Thanks to @TPMparts for helping me order the splitter and TDW Auto in San Jose for installing it.

Mods:
Brembo BM6 380mm BBK - front & rear Endless ME20
KW V5 Coilovers with Z07 spring rates
Forgeline 19x9.5 & APEX 19x12 
Goodyear Supercar 3R 265/35ZR19 (new) & 325/35ZR19 (new)
Magnaflow X-Mod Cat Back Exhaust
Verus Engineering front splitter
APR Performance GTC-500 wing
GM track spec alignment & TC off