Use this rear lip under spoiler air dam to enhance the look of your 1998 - 2001 Audi A6 C5 while driving on the road or showing off at car meets. It's perfect for Audi enthusiasts who want to add a sporty touch to their vehicle. Made of FRP material, it's strong and lightweight. The one - piece design fits well with the car's body. Just note that professional installation is needed and you'll have to cut the OEM bumper.