From GTPlanet Game Guides

N2 Tires

Exterior
Straight type BB wing Down force front/rear= (30/25)
Falken 002 tires

Interior
Sports exhaust
Racing Breaks
Racing Chip
1.5-way LSD

Fully customizable tranny. Only change final gear to 4.710 (IRL all they did was change final gear when tuning tranny)

Original Suspension
Front/Rear
Spring rate= 10/10
Ride height= 90/104
Shocks= 8/8
Camber= 2.3/2.1
Toe Angle= 0/0
Stabilizers= 5/4

Time attack
Amalfi= 2'18.930 (compare this ot the 2'14.822 of the amuse s2000)