ATS Aurora VFR 4000 Stage 2 upgraded replacement turbocharger for the 13-18 6.7L Cummins. Adding over 47rwhp w/ stock tuning, and 150rwhp when paired with our DynoLAB Tuning. This Aurora 4000 VFR is a direct drop in full emissions legal Turbo charger. New Actuator 47hp / 93 ft/lbs on stock tuning Exclusive Aurora 64mm 11 (full-length, extended tip) Blade Billet Wheel, 25 grams lighter than stock wheel while increasing strength. Will reliably support 550rwhp without soot loading the DPF and can be turned up 600rwhp for short term racing applications utilizing ATS DynoLab Tuning (Sold separately) 180rwhp gain for towing applications and sustainable driving, 230hp gain for short term racing. Upgraded high-flow turbine sections. Billet 316 stainless steel unison rings. No more stuck or warped vanes through the life of the turbo regardless of driving style 2 year/ 150,000 mile warranty HSM bearing housing HSM turbine housing Updated electronics High temperature ceramic coated turbine housing Powder-coated compressor housing Maintain all factory functions- Exhaust braking, Warm up function, Quick spool Modern solid state electronics for long term reliability No programming required No deletes required No actuator cleaning intervals, 100 percent Maintenance free unit Extremely Competitive price point