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Available in 1.9", 2.0", 2.1", 2.2", 2.3", 2.4", 2.5", 2.6", 2.7", 2.8", 2.9", 3.0" pulley sizes.
GM Series 1 Style Supercharger Pulley Six Groove Pulley '92 - '96 Pontiac Bonneville, Oldsmobile Ninety Eight, Buick Park Avenue, Buick Riviera & more Stock pulley size for 92-93 is 2.55". Stock size for 94-95 is 2.85". We recommend the 2.2" pulley for 92-93, and the 2.5" for 94-95.Click here to see a chart of sampled boost levels with different pulleys.
