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BMW 437M:
Front – 19″ x 9.0″ – 22.2 lbs
Rear – 19″ x 10″ – 24.2 lbs
http://customers.precision-sport.com...-wheel-weight/
GT350R -
Front – 19″ x 11.0″ – 18.xx lbs
Rear – 19″ x 11.5″ – 18.xx lbs
Looking at ~24lbs. less right there, with 7" more wheel