Not sure what took me so long to finally come to this historical track, new pavement is awesome, I watched a lot of videos from the past, track seems to be very bumpy, but its very smooth now. 

With better setup, proper driving, and new tires, I think sub 25 here in the E90 is possible. 

KW Clubsport,
Recaro Pole Position,
Akrapovic GT4 exhaust,
BBS e88,
285/30/18 RE71rs, 18th heat cycle,
PFC Front & Rear BBK,
Custom front splitter & custom rear wing, 
Epic Tune,
Eventuri intake,
CAE Shifter,
SPL Rear Toe Arm, & Front End Link,
Pump gas 92,
3,400 lbs with driver.