Ground effects kits are car body styling packages that fits on the bottom edge portions of a car. The kit usually includes an air dam and side skirts. These components were originally designed to reduce air flow and improve downforce of racing cars. For the Nissan Altima, these are styling components that make the car look lower to the ground.

The ground effects kit for the Altima includes the air dam, also called the front spoiler. It makes the front side of the car look as if it is lower to the ground. It also redirects airflow to the radiator or to the transmission or engine oil cooler.

 

The ground effects kit also includes side skirts. It is a restyling accessory that is attached to the vehicle's rocker panel. It makes the vehicle look closer to the ground without using a lowering kit.