When i go to take a corner at high speeds my hatch makes a loud thud like sound coming from the rear driver side. I have no clue what it is help.............

 

Lift the rear of the car up and start wiggleing suspension parts. Could be anything. PAy close attention to trailing arms and struts and for anything else loose.

 

Hm....

Check to see nothing is binding, that everything is torqued to spec, and the top hats are secure. You may be hitting the bump stops or the wheels may be hitting the car body? Also, check to see that everything it secure, I've had stuff bouncing around (Spare Tire..) in the back, and it bangs.

 

Exhaust banging on the sway bar?

 

Do you have those selve over springs? (the springs that come with the adjuster and spring that go inside the stock strut). If so, check all your suspension like the one person said and when you go to lower it back down, make sure the spring seats in with the top of the strut properly. Also, check the strut tower nuts at the top of the strut that bolt the top of the strut to the car.