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Recommended Items for 2017Add 2.1.9: 9. Firearms are not permitted in competition vehicles while on course.SM1. #19951 (Spec Miata Committee) Allow Splined Spacer in TransmissionUpdate for December 2016 Fastrack:Add 9.1.7.C.2.g: g. Transmission countershaft spacer Mazda p/n M504-17-304 may be replaced with asplined spacer, Mazda part number 0000-02-5722-SP.
Spec Miata1. #20439 (Spec Miata Committee) Parity changes for 1.8L carsIn SM, Mazda MX-5 / Miata (94-97), make the following changes:Restrictor: 47mm N/AWeight: "2350 2400 or 2365 2415 with alternate bore"