Increase airflow for more power, response, and reliability; Replace your factory turbo with a S300 SX-E Borg Warner T4 flange turbo; Kit includes a 5.9L 2-piece BD high flow pulse T4 manifold and gaskets; No extra piping required, it drops in place for an easy, clean installation; Comp Wheel: 64.5mm 2.54in; Turbine Wheel: 76mm 2.99in; A/R Ratio: 0.91; Flow: 82 Lb/min; Approximate rated 600hp (depending on truck configuration)