s13ofdoom wrote: ...and Turbo timer isn't really neccasary just leave the car sitting for a min or 2?
You gotta leave the car running until the exhaust gas temps drop down to a safe level. Sometimes it takes more than a minute or two. How much patience do you have? =)
I've spent 10 minutes in my car sometimes, waiting for the the RPMs to drop down from 1000 to 800. I figure if it saves the turbo and prolongs engine life, it's ten minutes well spent. If you're not patient though, you might wanna look at getting a turbo timer.
Hell, I'm patient and on the days when I'm sitting in a hot as hell parking lot, waiting for my damn car to cool down, I wish that I had invested in a turbo timer.
With regards to the meat of your question, get an intake and exhaust. Those will give you the most bang for your buck, and the most noticible performance increases.