These are Buddy Club's new P1 Extended Racing Ball Joints. Currently available for: DC, EK and EG chassis.  The way that these ball joints work is by effectively resetting the roll center of your vehicle's suspension after it has been lowered.  A vehicle’s suspension geometry is changed when lowered by increasing the angle of the lower control arm which affects the camber curve of the vehicle. These ball joints decrease the angle of the attachment point to the lower control arms there for resetting the vehicle’s roll center back to its original design. This essentially will improve turn in, mid corner grip of your car, braking in and accelerating out of turns, and allow you to run less static camber which will reduces tire wear. MSRP for $189.00