GreyZ33 appears to have stolen my working script, anyway...
If you're planning on adding power down the road with forced induction (I'd personally go supercharger instead of TT, but different strokes though) I wouldn't waste time and money on anything in the engine yet.
Additionally, after ensuring all potential problems and issues have been addressed, suspension, tires and brakes are always my first recommended vehicle modifications. Tires above all...stick around long enough and you'll see what a tire geek I am.
Welcome to NICO!