It ran a 1'36.808 on Infineon Raceway - Sports Car Course with this setup. Hope these help out.
Audi S4 '03
Exhaust : Racing
Racing Chip : Sports
NA Tuning : Stage 3
Tire Type : Sport
Front : Soft (S3)
Rear : Soft (S3)
Nitrous : Equip (50 shot) (I never use for settings tests and time trials)
Brakes : Racing
Brake Controller : Equip
Front : 3
Rear : 3
Suspension : Racing
Spring Rate : Front 11.0 / Rear 12.5
Ride Height : Front 104 / Rear 110
Shock (Bound) : Front 3 / Rear 4
Shock (Rebound) : Front 6 / Rear 8
Camber Angle : Front 3.0 / Rear 1.0
Toe Angle : Front 0 / Rear 0
Stabilizers : Front 3 / Rear 4
Transmission : Full Customize
Gears : 1st : 2.980
2nd : 2.055
3rd : 1.500
4th : 1.150
5th : 0.925
6th : 0.770
Final : 4.100
Clutch : Triple Plate
Flywheel : Racing
Carbon Driveshaft : Equip
Driving Aids :
ASM (Oversteer) : 0
ASM (Understeer) : 0
TCS Controller : 0 ( I use 0 on all the driving aids, but you can use what you feel better with)
Limited-Slip : Full Customize
Initial Torque : 10 Front and Rear
Acceleration : 15 Front and Rear
Deceleration : 15 Front and Rear
Variable Center Diff. : Control
Front Wheel Distribution : 50
Sorry this took so long, I had some things come up and had to head out.