http://www.staginglight.com/ <---- explains the tree and R/T...
Here are some basic points:
Lower your front tire pressure...I would not go below 25 but who knows. Raise your rear pressure...just not over the tire's max. If you have adjustable shocks set the rear stiff and the front soft.
You can empty all the junk out of your car, ie. your entire trunk, seats, etc...anything and everything you don't need. Soon little weight there...little weight there and you are helluva' lot lighter. Or not.
And don't drive through the burnout box.