Flashed directly through the (OBDII) Diagnostic port of your vehicle (10-15 minutes).
Engineered with Strict Industry StandardsExtensively Tested Under Various Driving ConditionsFactory Safety Limiters RetainedOptimized Responsiveness and DrivabilityOptimized Smoothness and Driving ComfortPower Delivery Perfectly Optimized Throughout the Power BandImproved Fuel EfficiencySpeed Governor RemovedRPM Limiter Increased to 7000Cold Weather Start and Warm up ImprovedLower End Hesitation (Lag) RemovedOptimized for an Upgraded (DV) Diverter Valve or (BOV) Blow Off ValveIgnition Timing Precisely Calibrated for Higher Octane FuelPrecisely Calibrated for an Upgraded Exhaust System (Go Green - Use a Catalytic Converter)Optimized for a High Flow Catalytic ConverterIncludes all Stage 2+ tune variants and all lower software stages as well.Required Hardware
RS4-K04's OEM Fuel Injectors OEM Maf Turbo Back Exhaust System Cold Air Intake / Short Ram Recommended Hardware
Upgraded (DV) Diverter Valve Upgraded Intercoolers Electrical/Electronic parts are non-returnable.
WARNING: This product can expose you to chemicals that are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information, visit www.P65warnings.ca.gov.
