You'll need new tires on the wheels. Figure at least $1,000 with shipping/mounting/balance.
Probably an AWIC, Ducts.
Redo all the suspension bushings with Whiteline or another vendor.
Switches, relays, fans.
A dyno or street tuning session. $500. Cobb Accessport $650.
If you're tall you may need to cut off and raise the roll bar height.