Hello and a very warm welcome from me the site Admin. Sorry for my slow reply, I've been out of action for a while due to a nasty virus but I'm pretty much back now.
It's good to have you with us. You'll find us one of the most friendly forums around.
Turbo upgrade and remap is about all you'll need although traction becomes and issue around 225bhp on these. A good LSD will help out greatly, especially in the corners.
Don't be shy, get involved in the many discussions and start new threads or ask questions, our community really thrives on fresh material posted up and we all contribute to help make this site what it is today.
Enjoy your time on here, I'm sure you'll fit in just fine and be sure to start up a project thread and keep us updated on your car project as it evolves and comes together.