BBK Performance Products 1620 - BBK GM Billet Aluminum Underdrive Pulley Systems
BBK Performance Products #129-16203-Piece Pulley Kit |
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Built from aircraft quality computer-machined aluminum, the BBK Underdrive Pulleys will free up about 10-15 horsepower while retaining full charging & cooling characteristics. Pulley systems are direct replacements so installation takes under 30 minutes. Made in the U.S.A.
