Increase front end downforce with our splitter endplates! Our signature design incorporates a vortex channel which helps seal the sides of the car. The freestream air’s pressure outside of the endplate is higher than that under the splitter. This air is pulled in towards the low pressure under the splitter, and as it does it passes into the vortex channel. As the airflow speeds up down the channel, it begins to swirl due to this difference in pressure. Splitter endplates keep the high pressure on top of the splitter from spilling over into the low pressure underneath. Splitter endplates are sold in pairs and are made to order.