HPF STAGE 3 | 275KW

WRX 09-14 HPF STAGE 3 | 275KW

The HP-F Stage 3 Performance Package for the 2009-2014 Subaru WRX has been developed for enthusiasts seeking the next level of performance from the EJ25 turbocharged platform. Combining substantial improvements in intake airflow, intercooler efficiency and exhaust flow with a bespoke ECU calibration, this package delivers impressive power gains, stronger mid-range performance and sharper throttle response while maintaining everyday drivability and reliability.

Every upgrade begins with a comprehensive pre-upgrade dyno assessment, establishing baseline power and torque figures before any modifications are carried out. This provides an accurate benchmark and allows us to clearly demonstrate the gains achieved throughout the upgrade process.

At the heart of the package is a combination of a Process West Cold Air Intake System, Process West Performance Intercooler Upgrade and a complete Invidia Turbo-Back Exhaust System. Together, these upgrades significantly improve the engine's ability to move air efficiently through the intake, turbocharger and exhaust system.

The upgraded intercooler provides improved cooling capacity, helping reduce charge-air temperatures and allowing the engine to maintain consistent performance under demanding conditions. Combined with the increased airflow from the cold air intake and reduced exhaust restriction from the turbo-back exhaust system, the turbocharger can operate more efficiently, resulting in improved boost response, stronger torque delivery and increased power throughout the rev range.

To maximise the benefits of these performance upgrades, HP-F performs a bespoke custom ECU dyno calibration specifically tailored to your vehicle. Extensive dyno testing is utilised to optimise boost control, ignition timing, fuel delivery and throttle response, ensuring safe, reliable and repeatable performance gains.

The result is a WRX that feels significantly stronger and more responsive, delivering harder acceleration, improved turbocharger response and enhanced driving enjoyment in both street and performance driving scenarios.

Once tuning is complete, every vehicle undergoes comprehensive dyno validation and testing to verify performance, drivability and reliability. A final dyno run is then completed to compare against the original baseline figures, clearly demonstrating the power and torque improvements achieved through the Stage 3 package.

At the completion of the upgrade, you'll receive a detailed before-and-after dyno report showcasing the final power and torque gains. The result is a WRX that delivers exceptional turbocharged performance, sharper response and a more engaging driving experience while retaining the reliability expected from a professionally engineered HP-F performance package.

Take your Subaru WRX to the next level with HP-F's dyno-tested Stage 3 Performance Package, combining improved airflow, enhanced intercooling and custom ECU calibration for outstanding real-world performance.

Package Includes

1 x Process West Cold air intake box        
1 x Invidia Turbo Back exhaust system        
1 x Process West Intercooler upgrade        
1 x Custom ECU dyno tune 
1 x Before and after dyno graph
1 x Labour to fit, tune and test

Key Features

Featuring a Process West Cold Air Intake, upgraded intercooler system, Invidia turbo-back exhaust and custom dyno calibration, the HP-F Stage 3 Package delivers substantial power gains, faster boost response and enhanced performance from the EJ25 turbo platform.

Notes

• *Please note: Power figures are estimates only and actual figure's may vary.
• We recommend all vehicles coming to HPF for tuning run 98 Octane fuel. Please contact us if you have a need to use different fuel.
• Power figures listed are estimated kilowatts at the flywheel based on results typically obtained by HPF on HPF’s dynos. Typically these are based of a manual vehicle with standard driveline and standard wheels and tyres. Actual power can vary based on each specific vehicle.
• Modifications such as this package require the vehicle to be in excellent mechanical order.
• We advise against increasing the power output substantially on high kilometer engines, if your engine has in excessive of 150,000kms please contact us to discuss options.
• Whilst every attempt is made to ensure prices listed online are correct, they are subject to change at any time.
• Additional parts may be required in some cases depending on the condition of the vehicle. Cost of these parts and additional labor required may incur additional cost.
• Images are for illustration purposes only

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