Performance Package 450HP builds on Performance Package 350HP, introducing a larger turbocharger, upgraded fueling components, and refined boost control to support increased horsepower and torque. Ideal for high-performance, street-driven WRXs that see occasional track use.

• FP Blue Turbocharger – Fast spool with strong top-end power for a responsive yet potent upgrade
• Cobb Cold Air Intake w/ Airbox – Increases airflow and improves turbo sound and response
• Invidia High-Flow Catted J-Pipe – Reduces backpressure, improving spool and exhaust efficiency
• Cobb Front Mount Intercooler Kit – Provides greater cooling capacity for consistent power under load
• 3-Port Boost Control Solenoid (Cobb or similar) – Enhances boost control and turbo efficiency
• AEM 340LPH Fuel Pump – Supports increased fuel demand under higher boost
• IAG Spec High-Pressure Fuel Pump (HPFP) – Maintains reliable fuel pressure under load
• IAG Spec Direct Injectors – Higher flow rate to support additional horsepower safely
• Cat-Back Exhaust (Customer’s Choice) – Improves exhaust flow and enhances tone (optional but recommended)
• Cobb Accessport V3 – Required for tuning, real-time monitoring, and logging
• Custom Dyno Calibration – Tailored for your setup to maximize power and drivability
• Pre-Dyno Inspection – Ensures vehicle health before tuning
• Baseline Dyno Run – Records power before upgrades for reference
• Post-Upgrade Dyno Run – Confirms performance gains and verifies final calibration

• Improved throttle response & turbo spool
• More aggressive sound & better exhaust flow
• Reliable, street-friendly performance gains

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