Seller notes

Limited edition Gold anodized 77mm and 5 piece idler kit bundle! Ultimate Performance Gold 77mm supercharger pulley upgrade for the AMG 55 Kompressor motor. Our tests show 60 to 70 + rear wheel hp and torque gains, while maintaining a safe level of boost and supercharger rpm. Pulley upgrade offers excellent driveability and does not adversely affect highway mileage. Fits 2003 - 2007 AMG Mercedes 55K ModelsThe patented and original Ultimate Performance supercharger pulley upgrade for the AMG 55 K...

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