depends on the dealer...some charge some dont. when i bought some new key fobs the dealer near me had a good constumer service department and programmed 2 of them for free..
its capable of being modded but it take alot of money to make it fast. Supercharge or turbocharge can be done.
you can supercharge it for between 1500-2500 usd depending on how picky you are with the parts.
replacing filters if you havent in the last 15-20k miles...
fuel filter
cabin air filter
intake air filter
Lucas Injector fluid
change oil if needed
top off all fluids
tire rotation and balance
tire alignment
some other minor stuff