If you don't know much about tuning then go w/ a Stg kit!!! Stg-1 ecu will give you a moddest jump, but if you want big power and torque instantly go Stg-2 or Stg-3 w/ toys and take Evo's & STI's on a daily basis!!!:good: My friend has a lightly modded Evo-8 and I keep up w/ him, and I only have a AEM short-ram intake!!!:woot: