Made form billet aluminum and anodized in blue, GReddy Pulley kits reduce reciprocating mass as well slow down accessories. Decrease engine drag while increasing the engine appearance. Labeled with the GReddy Logo, these overdrive kits do not alter the main crank pulley.
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Unorthodox Racing Ultra Street lightened underdrive pulleys are CNC-machined from lightweight 6061-T6 aluminum billet. Premium 6061-T6 aluminum billet ensures the consistency of the material's strength and balance. Tolerances are held to within .001", and numerous machining steps are used to ensure the lightest possible design. In addition to fit, finish is just as important and each piece is repr...