Trouble Free Passing The front bumper lip makes your car look lower to the ground since it takes up the space below your car’s frame, creating the illusion the frame is closer to the ground. But actually it will not affecting road passing. Enhance Downforce Effect Bumper lip is designed to split the air and redirect the wind. Having a bumper lip on your front bumper helps to enhance your vehicle’s aerodynamics for more stable handling. To some extent, this can also help with fuel economy by decreasing drag. - This item is the whole set of 100% brand new custom fit front lip, precisely engineered for an exact fit to your vehicle. - This item is made of Highest Grade ABS material finish will absolutely upgrade your exterior appearance. - Need to install screws,screws included , instructions NOT included, professional installation is highly recommended.