Drive it some before you plan on HP gains. You may find this car has enough HP. I believe too much is just enough however. Do you have a Tech Pack or a Track Pack. The Tech Pack may disappoint you during prolonged high speed runs. The transmissions overheat. If you have a Track Pack then no worries. The best way to tell is if you have Recaros or not. If you have the comfy air conditioned and heated seats then you have a Tech Pack. Good luck. This car comes alive after 4000rpm.