Genuine Do Luck Rear Cross Bar Looking to stiffen up your Silvia? Look no further... As you pursue speed under all circumstances, you will see handling is the more important point than power. If the body of the car is not stiff, the body will twist due to input from the road surface, force transmitted from the drive wheels, centrifugal force generated at cornering, etc. So that an accurate suspension stroke can not be expected from the vehicle. It ensures rigidity improvement while ensuring the occupant space of the rear seat, and it is easy to install.