does anyone know if the plastic undertray located right behind OEM front lip spoiler is necessary? not only does it scrape every steep driveway, but mine just flipped down under car after a 130mph run. does this piece serve a major purpose other than direct wind under car? thanks.

 

keeps your engine bay clean. Not really necessary. i've been running without mine for a year now. I'm underneath my car so much its more of a hassle for me to take it off all the time.