Skip to main content

Sign up for free

  • Get quick access to your favorite articles

  • Manage alerts on breaking news and favorite drivers

  • Make your voice heard with article commenting.

NASCAR.com's Jonathan Merryman and Chris Rice explain why NASCAR XFINITY Series teams run spoiler ears and how they affect the race cars downforce.

Comments

About this video
Duration
01:27
Posted
Nov 3, 2016
Series
NASCAR O'Reilly