There are a few ways you can get your car tuned. Usually, the cheap way to go about tuning it is with a small ECU control unit such sa a Venom 400 or S-AFC. The tuner, wether you do it yourself or have a guy at the shop do it just adjusts A/F and some minor things. Basically it all depends on what mods you already currently have and what exactly do you need tuned. If you have just CAI and Exhuast its not going to do much, maybe 5-6whp or so and then you might not want to spend the money tuning it. But if you had a Turbo or Supercharger, or some Heads work, cams, long tubes, nitrous, ect. Then you might want to consider a tune.