1/18/2013
ASCS
ASCS Muffler Rule Update
The American Sprint Car Series has converted to the Schoenfeld Muffler #14272735-78. All National Tour shows requiring mufflers will be required to use this style of muffler. No exceptions.
Regional competition will be allowed to use the Schoenfeld Muffler #112535 until June 1, 2013.
Submitted By: Bryan Hulbert
