I'm listing performance mods as well since I believe they play a factor on the track.
'07 e92 335i. AT with Stock OC.
-Procede V5 2.5 (max boost 13psi for track)
-Vishnu PMW Meth Kit (50/50 or 75/25)
-DCI, ETS 5" FMIC
-80/20 Water/Coolant mix with 2 bottles of Water Wetter
-Wavetrac LSD (bolted setup)
-M3 control arms/wishbones (-1.5F/-2.0R Camber. 0F, 1/16R Toe in)
-HR Sport & Koni Yellows
-Centric (Stoptech) Slotted Front Rotors
-Cool Carbon Pads (will be switching to something more aggressive)
-ECS SS Lines
-Motul 600 Fluid
-VMR V701 with Hankook V12 tires
The biggest opportunity is tire setup for me. I'm now looking for the perfect used set for sale. Square 17 would be ideal with either Nitto R compounds or the well regarded RS3 for the budget minded.
Have a set of rear subframe bushings. Once I buy F/R sways, I'll get it all installed at once. However, I feel the square setup will have more impact than the sways. Could be wrong.