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You can get down to around 89-90 db with a 14 or 16 inch silencer. They are out there because guys have shown up at Laguna with them.
Sept. 30-Oct. 1, 2017
Streets of Lancaster Grand Prix
October 13-15, 2017
Mooresville, North Carolina
WKA Manufacturers Cup Series
October 20-22, 2017
New Castle, Indiana