I don't think putting money down on a new Z is the way to go. The sport brakes are good but don't justify the cost if you've got to sell a Z you already own just to put yourself under more financial stress.
Like Chuck said, get new pads and try a track day or two and see what you need. If you're not tracking seriously then maybe all you need is the preventative stuff like an oil cooler and SS brake lines; things you need to buy separately ANYWAY whether you have a sport package or not.
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35% Hooper Optik | Takeda Attack CAI | F.I. HFC | Hotchkis Sway Bar | Stillen 24row | OS Giken Super Lock LSD | TK Shift Knob | EVO-R Carbon Diffuser
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