High Pressure Fuel Pump Internals – Mazdaspeed 3 / 6 / CX-7
Upgrade your factory high-pressure fuel pump with Autotech HPFP Internals, designed to increase fuel flow capacity and support tuned Mazda MZR 2.3 DISI Turbo applications.
Autotech is a well-established manufacturer of high-pressure fuel pump upgrades, with its HPFP internals widely used across tuned and higher-power builds.
The upgraded piston and cylinder can provide flow rates of approximately 50% higher than the factory pump, helping reduce fuel pressure limitations as power and fuel demand increase.
🔧 What This Upgrade Does
- Up to 50% higher fuel flow capacity than factory
- Helps maintain stable high-pressure fuel delivery under load
- Supports increased boost and higher horsepower applications
- Suitable for stock turbo through to larger turbo setups
- Helps reduce factory HPFP limitations on tuned vehicles
- Compatible with COBB Accessport OTS maps
⚙️ Precision Engineering
Autotech HPFP internals are manufactured with a focus on precision, durability and long-term performance.
Features include:
- 9.8mm precision-ground piston
- Precision-ground matching cylinder
- Piston and cylinder matched for accurate tolerances
- Multiple high-precision grinding stages during manufacture
- Plasma DLC coated components
- Low-friction surfaces designed to reduce wear
- Designed for consistent fuel delivery and longevity
The precise piston-to-cylinder tolerances are an important part of maintaining efficient high-pressure pump operation at increased flow rates.
🚀 Suitable for Tuned & Higher-Power Builds
The factory high-pressure fuel pump can become a limitation as boost, airflow and engine power increase.
Upgraded HPFP internals provide additional fuel delivery capacity for applications including:
- ECU tuned vehicles
- Increased boost
- Intake and exhaust upgrades
- Stock turbo performance builds
- Larger turbo conversions
- Higher horsepower applications
Autotech HPFP internals are commonly used by tuners because they provide increased fuel capacity without requiring replacement of the complete high-pressure pump assembly.
📦 Options Available
Option 1 – Autotech HPFP Internals Only – $845
Includes the upgraded Autotech piston and cylinder internals.
Best suited to:
- Lower kilometre pumps
- Pumps already known to be in good condition
- Customers wanting the HPFP performance upgrade only
- Budget-conscious builds
Option 2 – Autotech HPFP Internals + Rebuild Kit – $927
Includes the Autotech upgraded internals plus replacement pump wear components.
Recommended when the pump is already being disassembled, particularly on higher kilometre vehicles.
Benefits include:
- Replace common wear components while the pump is apart
- Better suited to older or higher kilometre pumps
- Helps reduce the likelihood of additional pump-related work later
- Avoids paying repeat labour to reopen the pump for worn components
⭐ Key Features
✔ Up to 50% higher flow capacity than factory
✔ Genuine Autotech HPFP internals
✔ 9.8mm precision-ground piston
✔ Matched piston and cylinder
✔ Plasma DLC coated components
✔ Tight manufacturing tolerances
✔ Designed for durability and longevity
✔ Suitable for stock and larger turbo setups
✔ Compatible with COBB Accessport OTS maps
✔ Trusted upgrade for tuned MZR DISI Turbo applications
⚠️ Important
Professional installation is recommended.
High-pressure fuel pump components require extremely precise assembly and cleanliness. Incorrect installation or contamination may damage the pump or affect fuel pressure.
Fuel system requirements will depend on the vehicle’s tune, modifications, fuel type and target power level.
⏱️ Supply Time
Order-in item
Typical supply time is approximately 1 week, subject to supplier availability and freight.
🏁 Vehicle Compatibility
Suitable for Mazda MZR 2.3 DISI Turbo applications including:
- Mazda 3 MPS / Mazdaspeed 3
- Mazda 6 MPS / Mazdaspeed 6
- Mazda CX-7 2.3 Turbo
If you are unsure whether this kit suits your vehicle, please contact us with your VIN or chassis number before ordering.
💡 Key Benefit
A proven high-volume HPFP upgrade offering approximately 50% more flow than the factory internals, precision manufacturing and compatibility with both stock turbo and higher-power Mazda MZR DISI builds.
