i upgraded my suspension/ tires for autocross, below it a list of components and setting
i runs very fast and neutral..........2007 rx-8 w/ greddy turbo

Progress tech: front and rear sway bars, both at stiffest setting w/ evo-x adjustable end links

Ohlins R&T coilovers:
front at factory set height
rear adjusted up 10mm.....this leveled my car at 14.125" front and back
using recommended rebound settings

18x10 +43 Flowone wheels w/ 265 35r 18 falken 615+ tires