Performance Package 500HP builds on Performance Package 380HP, introducing a larger turbocharger, upgraded fueling, and improved boost control to support increased horsepower and torque. Ideal for high-performance, street-driven WRXs that see occasional track use.

• Blouch 5056XT Turbocharger – Higher flow turbo for increased power and improved top-end performance
• ETS Intake Kit – Optimized airflow and sharper throttle response
• ETS High-Flow Catted J-Pipe – Lowers exhaust restriction for better spool and turbo efficiency
• Cobb Front Mount Intercooler Kit – Superior charge cooling to maintain consistent power under load
• 3-Port Boost Control Solenoid (Cobb or Similar) – Enables refined boost tuning and control
• IAG Spec High-Pressure Fuel Pump (HPFP) – Ensures reliable fuel delivery under higher boost
• IAG Spec Fuel Injectors – High-flow direct injectors to support additional fuel demand
• Cat-Back Exhaust (Optional but Recommended) – Improves exhaust flow and delivers a more aggressive tone
• Cobb Accessport V3 – Required for ECU tuning, datalogging, and live monitoring
• Custom Dyno Calibration – Tailored tune for optimal power, torque, and drivability
• Pre-Dyno Inspection – Verifies vehicle condition prior to tuning
• Baseline Dyno Run – Measures performance before installation for comparison
• Post-Upgrade Dyno Run – Confirms horsepower gains and ensures calibration accuracy

• Boosts top-end performance while maintaining low-end torque
• Complete fuel and turbo system pairing for reliable operation
• Ideal for high-performance daily use and spirited driving

• 91 Octane required (E85 available with additional fueling modifications)
• Custom tuning required
• Pre-dyno inspection is mandatory
• Oil pan upgrade recommended for improved reliability