Best next upgrade?

I'll drive it to work a couple of times a month when the weather's nice.
"Spirited" Sunday drives on back country roads, occasional car meet up. It's not pretty enough for a show.
Will probably take it to Woodburn drag strip once or twice in its life just to experience it.
I'd like it to be safe, quick and cool, probably in that order :p

"Spirited Sunday drives on back country roads" yeah I'd put bigger torsion bars in there in a heartbeat.