In a move aimed at improving the spectacle and enhancing safety at the bigger tracks, the series will switch from the original rear wing of the current Cup car, to a spoiler as used until 2007 with the old specification of car.
The decision comes following extensive talks with those involved in the series, including drivers and teams.
They were all informed about the move officially on Friday, and a test session for teams to sample the new device on the track has already been scheduled at Charlotte Motor Speedway on March 23 and 24.
Officials have yet to announce the dimensions of the spoiler and a date has yet to be set for its race debut, but it is not expected to happen at least until the sixth race of the season at Martinsville.
More details about the move are expected next week, along with other rule changes NASCAR plans to implement for races at restrictor-plate tracks.
This year NASCAR will also introduce the new specification of Nationwide Series car, which will also feature a spoiler instead of a rear wing.
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