Body kits are parts of an automobile's lower body designed to enclose the gap between the bottom of the fuselage and the ground. The purpose of body kits are to deflect air around the car rather than under it, improving the downforce. Air passing under a vehicle exerts a lifting effect at high speed, which reduces the tires' contact with the road, resulting in reduced control.

Reducing the distance between the road surface and the vehicle under-body causes the air flow between the gap to increase in velocity. Air pressure reduces inversely with flow speed so this effect creates a vacuum underneath the vehicle, essentially "sucking" the car onto the ground and increasing traction. This can be dangerous if the air flow underneath the car is suddenly lost, by "bottoming out" or hitting a bump. The sudden drop in traction can easily cause the driver to lose control.

 

Body Kit Manufacturers

Julius

Final Konnexion

Mac

Bomex

Origin

J-Blood

Jubiride

Do-Luck

Vertex

Veilside

Junction Produce

Wald

Fabulous