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This CNC lightening process removes weight from the factory rotors. Any mass inside the engine that can be made lighter drastically improves response and also safety at high rpm. This benefits even factory engines, but is a requirement for setups going over 8500 rpm.  This modification is performed on YOUR rotors. Rotors must be shipped to Defined Autoworks.  Dynamic balancing is required after the lightening process. 

Lightweight cnc rotor modification 13b 2-rotor

SKU: 217537123517253
  • Rotors must be shipped to Defined Autoworks for modification. 

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