Am I strong enough financially to support this as well as the other requirements of my life?
How many miles are on my engine? And can the engine support the modifications I would like to do?
What kind of performance would I like to see out of my vehicle?
Will this vehicle be a daily driver?
How much money am I willing to spend?
Am I planning on putting a form of force induction on my car?
What kind of set up am I planning to install if any?
How much longer do I plan on keeping this vehicle?
Is there any maintenance that needs to be done before hand?
Do I care about economy at all?
How much do I really know about cars, and how much do I know about modifying them?