STAGE 4 | 250KW

ISUZU D-MAX/MU-X 3.0L | STAGE 4 | 250KW

The HPF Stage-4 Upgrade for the Isuzu D-Max/MU-X 3.0L Diesel delivers exceptional power and torque, targeting approximately 210kW and 650Nm, optimized for high-performance applications. Featuring a Gturbo 4J-G250 turbocharger, Process West front mount intercooler kit, Process West SEPR8R Catch Can, Baileys Diesel +30 Injector Assembly Fit Kit, Pacemaker 3" turbo-back exhaust (no catalyst), and custom ECU tuning, this package is professionally installed and dyno-optimized, with before-and-after dyno graphs showcasing performance gains.

Upgrades

1. Gturbo 4J-G250 Turbocharger
   Enhances airflow and reliability, extending the powerband beyond 2900rpm for significant power and torque gains. Direct-fit design requires no additional modifications.
   • Features:
     • Increased airflow for higher performance.
     • Improved durability over stock turbo.
     • Manufactured in Balcatta, WA with a 1-year warranty.
        
2. Process West Front Mount Intercooler Kit
   Replaces the undersized factory intercooler and unreliable rubber hoses with a larger, heavy-duty intercooler and silicone hoses, reducing intake temperatures by up to 40°C for consistent power output.
   • Features:
     • Bar and plate construction for durability and cooling efficiency.
     • Larger core for superior heat dissipation.
     • High-strength silicone hoses for reliability under boost.
        
3. Process West SEPR8R Catch Can
   Captures oil mist from the crankcase vent, preventing carbon buildup in the inlet manifold and intercooler to maintain engine performance and reliability.
    
   • Features:
     • Billet aluminum with a 650ml capacity.
     • Washable, reusable metal matrix filtration system.
     • Over-pressure relief valve and drain port with optional valve.
     • Custom bracket and hoses for the D-Max/MU-X engine bay.
        
4. Baileys Diesel +30 Injector Assembly Fit Kit (x4)
   Upgraded injector assemblies increase fuel delivery by 30%, supporting the turbo’s enhanced airflow to maintain optimal air/fuel ratios for maximum power without compromising efficiency in regular use.
5. Pacemaker 3" Turbo-Back Exhaust (No Catalyst)
   Improves exhaust flow and turbo response with a 3-inch stainless steel system, eliminating the catalytic converter for unrestricted performance while maintaining a high-flow design. Manufactured in Richmond, SA for durability and quality.
6. Custom ECU Tuning
   Optimizes the ECU on the dyno in real-time using advanced software to maximize power, torque, and fuel efficiency, tailored to the upgraded turbo and injectors. Road testing ensures refined performance and driveability.

Benefits

• High Performance: Delivers ~210kW and 650Nm for superior power in demanding conditions.
• Enhanced Reliability: Robust components prevent heat soak, carbon buildup, and system failures.
• Improved Efficiency: Optimized tuning and exhaust flow enhance fuel economy under load.
• Driveability: Smoother power delivery and extended powerband improve the driving experience.

Installation

Our technicians complete the installation and tuning in one session, ensuring seamless integration. Dyno and road testing confirm optimal performance and reliability, with before-and-after graphs provided.

Package Includes

1x HPF custom dyno tune
1 x Process West Sepr8r Catch Can
1 x Gturbo 4J-G250 Turbocharger (change over)
1 x Process West front mounted Intercooler
1 x Process West intercooler hose upgrade kit
4 x Baileys Diesel +30 Inj Assembly inc Fit Kit
1 x Pacemaker 3" turbo back exhaust (no cat)
1 x Labour to fit, tune and test

*Intercooler fitment labour may change based on accessories fitted to the vehicle.

Key Features

The Stage-4 Upgrade for the Isuzu D-Max/MU-X 3.0L Diesel targets peak performance by addressing critical power-limiting components with a Gturbo 4J-G250 turbocharger, Baileys Diesel +30 injector assemblies, and supporting hardware. This package significantly increases airflow and fuel delivery, boosting power to ~210kW and torque to ~650Nm across the rev range. Adhering to our ‘reliability first protocol,’ we maintain safe air/fuel ratios and low exhaust gas temperatures (EGTs) to ensure durability. The Stage-4 package includes only essential upgrades for maximum performance, such as a high-flow intercooler, catch can, and exhaust system, ensuring optimal power, reliability, and driveability.

Notes

• Power figures listed are estimated kilowatts at the flywheel based on results typically obtained by HPF on HPF’s dynos and are based on a automatic vehicle with standard driveline and standard wheels and tyres. Actual power can vary based on each specific vehicle.
• 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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