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2027 TECHNICAL BULLETINS

IMSA WEATHERTECH CHAMPIONSHIP

Technical Bulletin IWSC #27-01: 10/29/25 IMSA 2027 Bosch Scrutineering System Manual (BSSM) Updates - GTP, GTD, GTD-PRO

IMSA MICHELIN PILOT CHALLENGE

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IMSA VP RACING SPORTSCAR CHALLENGE

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PORSCHE CARRERA CUP

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MAZDA MX-5 CUP

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MUSTANG CHALLENGE

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2026 Technical Bulletins

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