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ASCS Muffler Rule Update

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.

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