SUBARU | CUSTOM DYNO TUNE

HPF can recalibrate your factory fuel injected Turbocharged Subaru ECU (MY01->) and Subaru BRZ or Toyota 86 using HP-Flash software. We optimise the fuel, timing and boost to maximise torque and horsepower. We can upgrade the performance of pretty much all turbo Subaru's including WRX, STI, Liberty B4/GT and Forester XT. Custom dyno tuning ensures your engine package is making optimum power and efficiency across the entire rev range. We tune for cold and hot start, varying load/throttle applications and fuel type to suit its individual needs and preferences. We can also offer Launch control and flat foot shifting for specific STI WRX models.

BRZ / 86 HPF STAGE 2 | 175KW

The BRZ/86 Stage 2 upgrade starts with our trained technician fitting a a complete Perrin cold air intake. We then add the PSR Headers and an Invidia Q300 (Invidia N1 is a no cost option) stainless steel catback exhaust to increase the overall engine's breathing capabilities. We then tune your vehicles ECU on the dyno in real time utilizing the latest Subaru ECU tuning software to maximize power, torque and fuel efficiency.

We complete the upgrade process by testing your vehicle on the road to make final adjustments, optimizing your vehicle's performance and driveability. At the end of this upgrade we will provide you with a dyno graph comparing the before and after power & torque increase the HPF upgrade has made to your vehicle.

PLEASE NOTE : The Horsepower Factory (HPF) has no affiliation with Toyota or Subaru and service offered by our company may impact on your vehicle manufacturer warranty as well as the fuel efficiency and emissions of your vehicle.

BRZ / 86 HPF STAGE 1 | 165KW

The BRZ/86 Stage 1 upgrade starts with our trained technician fitting a complete Perrin cold air intake kit and unequal length headers to increase the engine's breathing capabilities. We then tune your vehicle's ECU on the dyno in real time utilizing the latest Subaru ECU tuning software to maximize power, torque and fuel efficiency.

We complete the upgrade process by testing your vehicle on the road to make final adjustments, optimizing your vehicle's performance and driveability. At the end of this upgrade we will provide you with a dyno graph comparing the before and after power & torque increase the HPF upgrade has made to your vehicle.

Like all HPF upgrade packages the Stage 1 package is modular in that it allows the customer to add to the package minimising the requirement to spend money twice when and if further upgrades are desired. HPF strive to bring you maximum performance with high quality components while still maintaining reliability and driveability.

PLEASE NOTE : The Horsepower Factory (HPF) has no affiliation with Toyota or Subaru and service offered by our company may impact on your vehicle manufacturer warranty as well as the fuel efficiency and emissions of your vehicle.

BRZ / 86 HPF STAGE 3 | 235kW

The BRZ / 86 Stage 3 upgrade is expertly designed to elevate your vehicle's performance through a series of high-quality modifications. The upgrade process commences with the installation of a Harrop TVS1320 positive displacement intercooled supercharger kit, specifically engineered to enhance the engine’s breathing capabilities. When paired with the standard 95mm drive pulley, the TVS1320 produces 4.5 psi of boost at 2000 RPM, yielding an impressive 53% increase in torque. As RPMs increase, it ramps up to a maximum of 8.7 psi at 7400 RPM, delivering an outstanding 50% increase in top-end power.

To fully realize the potential of this upgrade, we additionally fit PSR unequal-length headers and an Invidia Q300 cat-back exhaust system. This combination amplifies exhaust flow and enhances the overall sound, further improving the performance profile of your BRZ or 86. Following these installations, we proceed to conduct a custom tune of your vehicle's ECU on the dynamometer. Utilizing the latest Subaru ECU tuning software, we optimize engine parameters in real-time to maximize power, torque, and fuel efficiency, ensuring a responsive and exhilarating driving experience.

The upgrade process is finalized with comprehensive road testing, allowing us to make any necessary adjustments to enhance your vehicle's overall performance and drivability. At the conclusion of the upgrade, you will receive a dyno graph that compares the power and torque figures before and after the HPF upgrade, clearly highlighting the significant improvements achieved.

Designed and manufactured by Harrop to OE standards, the TVS1320 Supercharger system features the latest generation Eaton TVS supercharger technology, specifically tailored for the FA20 engine. Its front drive/front inlet design facilitates a shorter, less restrictive intake path, improving airflow and enhancing overall performance. Furthermore, the integrated setup includes two high-density water-to-air intercoolers that ensure optimal air distribution across the intercooler face.

The installation of the TVS1320 supercharger maintains an OEM appearance and fitment, benefiting from Harrop's extensive experience in designing and supplying OE supercharger programs for well-known brands such as Ford and Lotus. With the Stage 3 upgrade, your BRZ or 86 will provide an exhilarating performance boost, perfectly blending reliability with an engaging driving experience that elevates your journey to new heights.

PLEASE NOTE : The Horsepower Factory (HPF) has no affiliation with Toyota or Subaru and service offered by our company may impact on your vehicle manufacturer warranty as well as the fuel efficiency and emissions of your vehicle.

VFII 6.2L HPF Stage 1 | 325KW

The HPF LS3 Stage-1 upgrade starts with our trained technician fitting a Harrop ‘Over the Radiator’ Cold Air Induction system with a high flow, serviceable air filter element. We then custom tune your vehicle's ECU on the dyno utilizing the latest ECU tuning software to maximize power and torque and to optimize fuel efficiency. We complete the upgrade process by testing your vehicle on the road to make final adjustments, optimizing your vehicle's performance and driveability. This is all completed in a day and at the end of this upgrade you will be provided with a dyno graph detailing the power & torque increase of your vehicle. Flex Fuel (E85) is an option, talk to one of our Sales Representatives.

• Cold Air Intake - The Harrop ‘Over the Radiator’ Air Induction (OTR) system features a large diameter free-flowing intake path to ensure maximum performance from your LS3 powered vehicle. It features a large surface area panel air filter mounted directly in front of the engines throttle body and is designed to draw straight in from the grille opening. This design assists in minimizing the restriction of air flow and eliminates the intake of hot air from inside the engine bay.
• Dyno Tuning – By optimizing the engine tune parameters in the vehicles PCM to suit 98 octane fuel, we are able to increase both power and torque and maximise fuel economy. Late model naturally aspirated cars are generally tuned very well from the manufacturer so depending on the vehicle platform mechanical parts to improve the engines intake & exhaust flow may need to be added to really get good gains. Engines fitted with a turbocharger from factory are much easier to enhance as increasing boost pressure by tuning works extremely well.

GEN-F LSA Stage 1 | 475KW

The HPF LSA Stage-1 upgrade starts with our trained technician fitting a Harrop Cold Air Induction system with a high flow, serviceable air filter element and a 160-degree thermostat to the engines cooling system. We then custom tune your vehicle's ECU on the dyno utilizing the latest ECU tuning software to maximize power and torque and to optimize fuel efficiency. We complete the upgrade process by testing your vehicle on the road to make final adjustments, optimizing your vehicle's performance and driveability. This is all completed in a day and at the end of this upgrade you will be provided with a dyno graph detailing the power & torque increase of your vehicle. Flex Fuel (E85) is an option, talk to one of our Sales Representatives.

• Cold air intake - The Harrop Cold Air Induction (CAI) system features a large diameter free-flowing intake path to ensure maximum performance from your LSA powered vehicle. It features a large surface area pod style air filter to assist in minimizing the restriction of air flow and is contained in a fabricated housing which seals against the underside of the vehicles bonnet to reduce the intake of hot air from inside the engine bay.
• Thermostat - HPF offers this premium quality 160-degree thermostat for LSA Applications. This is a direct drop in with no modifications needed and includes the rubber seal. Reducing engine coolant temperature will help produce more horsepower and improve your performance and driveability. The thermostat is an easy to install component and requires no modifications.

GEN-F LSA Stage 2 | 500KW

The HPF LSA Stage-2 upgrade starts with our trained technician fitting a Harrop Cold Air Induction system with a high flow, serviceable air filter element and a 160-degree thermostat to the engines cooling system, the same as Stage-1. Stage-2 goes further adding a higher boost Griptec 65mm (2.55”) supercharger drive pulley, ZPE hub and coupling upgrade which is complimented by a set of high flow fuel injectors. We then custom tune your vehicle's ECU on the dyno utilizing the latest ECU tuning software to maximize power and torque and to optimize fuel efficiency. We complete the upgrade process by testing your vehicle on the road to make final adjustments, optimizing your vehicles performance and driveability. This is all completed in a day and at the end of this upgrade you will be provided with a dyno graph detailing the power & torque increase of your vehicle. Flex Fuel (E85) is an option, talk to one of our Sales Representatives.

• Cold air intake - The Harrop Cold Air Induction (CAI) system features a large diameter free-flowing intake path to ensure maximum performance from your LSA powered vehicle. It features a large surface area pod style air filter to assist in minimizing the restriction of air flow and is contained in a fabricated housing which seals against the underside of the vehicles bonnet to reduce the intake of hot air from inside the engine bay.
• Thermostat - HPF offers this premium quality 160-degree thermostat for LSA Applications. This is a direct drop in with no modifications needed and includes the rubber seal. Reducing engine coolant temperature will help produce more horsepower and improve your performance and driveability. The thermostat is an easy to install component and requires no modifications.
• Supercharger pulley - The High boost supercharger pulley includes the ZPE Pulley Hub system for the factory GM LSA engine. The pulley is made from billet 7075-T6 aerospace grade aluminium, stronger and harder than 6061 T6. This pulley is equipped with GripTec® - a unique micro machining technology. This technology allows the maximum grip force to be applied to the component and belt without damaging your belt. Made in California, USA.
• Fuel injectors - HPF only uses premium fuel injectors from Excess Fuel Injectors for the LSA platform. All Excess Injectors are tested on a custom built test bench to J1832 standards under a strict testing protocol in a purpose-built facility in Melbourne’s south eastern suburbs. Every injector set is dynamically flow matched within 1% and deadtime matched within 2%. This saves dyno time tuning injectors and allows us to get a perfect result every time. These injectors come with a lifetime guarantee; ask for more info.

GEN-F LSA Stage 3 | 530KW

The HPF LSA Stage-3 upgrade starts with our trained technician fitting a Harrop Cold Air Induction system with a high flow, serviceable air filter element and a 160-degree thermostat to the engines cooling system, a higher boost Griptec 65mm (2.55”) supercharger drive pulley, ZPE hub and coupling upgrade which is complimented by a set of high flow fuel injectors the same as Stage-2. Stage-3 goes further adding a full stainless steel exhaust system including 2”, 4-1 extractors and 3" high flow catalytic converters. We then custom tune your vehicle's ECU on the dyno utilizing the latest ECU tuning software to maximize power and torque and to optimize fuel efficiency. We complete the upgrade process by testing your vehicle on the road to make final adjustments, optimizing your vehicle's performance and driveability. This is all completed in two days. At the end of this upgrade, you will be provided with a dyno graph detailing the power & torque increase of your vehicle. Flex Fuel (E85) is an option, talk to one of our Sales Representatives.

• Cold air intake - The Harrop Cold Air Induction (CAI) system features a large diameter free-flowing intake path to ensure maximum performance from your LSA powered vehicle. It features a large surface area pod style air filter to assist in minimizing the restriction of air flow and is contained in a fabricated housing which seals against the underside of the vehicles bonnet to reduce the intake of hot air from inside the engine bay.
• Thermostat - HPF offers this premium quality 160-degree thermostat for LSA Applications. This is a direct drop in with no modifications needed and includes the rubber seal. Reducing engine coolant temperature will help produce more horsepower and improve your performance and driveability. The thermostat is an easy to install component and requires no modifications.
• Supercharger pulley - The High boost supercharger pulley includes the ZPE Pulley Hub system for the factory GM LSA engine. The pulley is made from billet 7075-T6 aerospace grade aluminium, stronger and harder than 6061 T6. This pulley is equipped with GripTec® - a unique micro machining technology. This technology allows the maximum grip force to be applied to the component and belt without damaging your belt. Made in California, USA.
• Fuel injectors - HPF only uses premium fuel injectors from Excess Fuel Injectors for the LSA platform. All Excess Injectors are tested on a custom built test bench to J1832 standards under a strict testing protocol in a purpose-built facility in Melbourne’s south eastern suburbs. Every injector set is dynamically flow matched within 1% and deadtime matched within 2%. This saves dyno time tuning injectors and allows us to get a perfect result every time. These injectors come with a lifetime guarantee – ask for more info.
• Exhaust - HPF chooses Pacemaker Exhausts for the LSA platform. Made in Richmond, South Australia for almost half a century, Pacemaker are synonymous with performance and quality. Given the performance the LSA is capable of producing, we chose Pacemakers 2” 4-1 headers (extractors) for the maximum in flow, matched to their 3” high flow catalytic converters and a stainless steel dual 3” system. The sound is deep and meaningful.

GEN-F LSA Stage 4 | 570KW

The HPF LSA Stage-4 upgrade starts with our trained technician fitting a Harrop Cold Air Induction system with a high flow, serviceable air filter element and a 160-degree thermostat to the engines cooling system, a higher boost Griptec 65mm (2.55”) supercharger drive pulley, ZPE hub and coupling upgrade which is complimented by a set of high flow fuel injectors and adding a full stainless steel exhaust system including 2”, 4-1 extractors the same as Stage-3. Stage-4 goes further adding a high-performance camshaft package, a drop in 1000hp fuel pump assembly and a new overdrive harmonic balancer for even more boost. We then custom tune your vehicle's ECU on the dyno utilizing the latest ECU tuning software to maximize power and torque and to optimize fuel efficiency. We complete the upgrade process by testing your vehicle on the road to make final adjustments, optimizing your vehicle's performance and driveability. This is all completed in two days. At the end of this upgrade, you will be provided with a dyno graph detailing the power & torque increase of your vehicle. Flex Fuel (E85) is an option, talk to one of our Sales Representatives.

• Cold air intake - The Harrop Cold Air Induction (CAI) system features a large diameter free flowing intake path to ensure maximum performance from your LSA powered vehicle. It features a large surface area pod style air filter to assist in minimizing the restriction of air flow and is contained in a fabricated housing which seals against the underside of the vehicles bonnet to reduce the intake of hot air from inside the engine bay.
• Thermostat - HPF offers this premium quality 160-degree thermostat for LSA Applications. This is a direct drop in with no modifications needed and includes the rubber seal. Reducing engine coolant temperature will help produce more horsepower and improve your performance and driveability. The thermostat is an easy to install component and requires no modifications.
• Supercharger pulley - The High boost supercharger pulley includes the ZPE Pulley Hub system for the factory GM LSA. The pulley is made from billet 7075-T6 aerospace grade aluminium, stronger and harder than 6061-T6. This pulley is equipped with GripTec® - a unique micro machining technology. This technology allows the maximum grip force to be applied to the component and belt without damaging your belt. Made in California, USA.
• Fuel injectors - HPF only uses premium fuel injectors from Excess Fuel Injectors for the LSA platform. All Excess Injectors are tested on a custom built test bench to J1832 standards under a strict testing protocol in a purpose-built facility in Melbourne’s south eastern suburbs. Every injector set is dynamically flow matched within 1% and deadtime matched within 2%. This saves dyno time tuning injectors and allows us to get a perfect result every time. These injectors come with a lifetime guarantee – ask for more info.
• Exhaust - HPF chooses Pacemaker Exhausts for the LSA platform. Made in Richmond, South Australia for almost half a century, Pacemaker are synonymous with performance and quality. Given the performance the LSA is capable of producing we chose Pacemakers 2” 4-1 headers (extractors) for the maximum in flow, matched to their 3” high flow cats and mandrel bent stainless steel dual 3” system. The sound is deep and meaningful.
• Fuel pump – More air needs more fuel and for the OEM LSA supercharger equipped upgrade packages, we chose the drop in 1000hp fuel pump from KPM in Edwardstown, South Australia. The factory LSA fuel pump supports a good amount of power but fuel pressure drops off even with a moderate power increase. To avoid the probability of leaning out the engine we install a higher flowing aftermarket system. The fuel system utilizes a Bosch motorsport fuel pump and simply replaces the existing OEM fuel module to deliver cool dense fuel to support power up to 1000hp on the race track as well as delivery for perfect manners in day-to-day city traffic.
• Harmonic balancer – In the quest for more boost pressure we chose to add a PowerBond over-drive harmonic balancer as opposed to a smaller S/C pulley as this maximises belt grip. The overdrive segment of the new harmonic balancer does not affect the non-supercharger related accessories run by the OEM drive belt. The PowerBond over-drive balancer comes in 5 different over-drive ratio’s depending on boost requirements it also features the same material and extreme pressure-bonded process as PowerBond SFI race series harmonic balancers and are made in Wagga Wagga, NSW.
• Cam package (LSA engine) – Utilizing the latest in Spintron technology, Brian Tooley Racing (BTR) in Kentucky, USA lead the way in valvetrain component design. The Spintron machine allows BTR to effectively test and design camshaft and valvetrain products to ensure stability and longevity like no other device. HPF is not shy in leveraging BTR’s extensive testing and as such, our product list for the cam package includes BTR’s camshaft, platinum dual valve springs and V2 rocker trunnions. Supporting the BTR components, we use Australian made Rollmaster heavy duty single row timing chains and Crow Cams pushrods. Cam selection should be based on driving expectations and should be discussed with one of our HPF representatives. We recommend new hydraulic lifters in higher milage engines.

GEN-F LSA Stage 5 | 600KW

GEN-F LSA Stage-5 | 600KW

The HPF LSA Stage-5 upgrade starts with our trained technician fitting a Harrop Cold Air Induction system with a high flow, serviceable air filter element and a 160-degree thermostat to the engines cooling system, a higher boost Griptec 65mm (2.55”) supercharger drive pulley, ZPE hub and coupling upgrade which is complimented by a set of high flow fuel injectors and adding a full stainless steel exhaust system including 2”, 4-1 extractors the same as Stage-4. Stage-5 goes further adding a high-performance head and cam package, a drop in 1000hp fuel pump assembly and a new overdrive harmonic balancer for even more boost. We then custom tune your vehicle's ECU on the dyno utilizing the latest ECU tuning software to maximize power and torque and to optimize fuel efficiency. We complete the upgrade process by testing your vehicle on the road to make final adjustments, optimizing your vehicle's performance and driveability. This is all completed in two days. At the end of this upgrade, you will be provided with a dyno graph detailing the power & torque increase of your vehicle. Flex Fuel (E85) is an option, talk to one of our sales representatives.

• Cold air intake - The Harrop Cold Air Induction (CAI) system features a large diameter free flowing intake path to ensure maximum performance from your LSA powered vehicle. It features a large surface area pod style air filter to assist in minimizing the restriction of air flow and is contained in a fabricated housing which seals against the underside of the vehicles bonnet to reduce the intake of hot air from inside the engine bay.
• Thermostat - HPF offers this premium quality 160-degree thermostat for LSA Applications. This is a direct drop in with no modifications needed and includes the rubber seal. Reducing engine coolant temperature will help produce more horsepower and improve your performance and driveability. The thermostat is an easy to install component and requires no modifications.
• Supercharger pulley - The high boost supercharger pulley includes the ZPE Pulley Hub system for the factory GM LSA engine. The Pulley is made from billet 7075-T6 aerospace grade aluminium, stronger and harder than 6061-T6. This pulley is equipped with GripTec® - a unique micro machining technology. This technology allows the maximum grip force to be applied to the component and belt without damaging your belt. Made in California, USA.
• Fuel injectors - HPF only uses premium fuel injectors from Excess Fuel Injectors for the LSA platform. All Excess Injectors are tested on a custom built test bench to J1832 standards under a strict testing protocol in a purpose-built facility in Melbourne’s south eastern suburbs. Every injector set is dynamically flow matched within 1% and deadtime matched within 2%. This saves dyno time tuning injectors and allows us to get a perfect result every time. These injectors come with a lifetime guarantee – ask for more info.
• Exhaust - HPF chooses Pacemaker Exhausts for the LSA platform. Made in Richmond, South Australia for almost half a century, Pacemaker are synonymous with performance and quality. Given the performance the LSA is capable of producing we chose Pacemakers 2” 4-1 headers (extractors) for the maximum in flow, matched to their 3” high flow catalytic converters and mandrel bent stainless steel dual 3” system. The sound is deep and meaningful.
• Harmonic balancer – In the quest for more boost pressure we chose to add a PowerBond over-drive harmonic balancer as opposed to a smaller S/C pulley as this maximises belt grip. The overdrive segment of the new harmonic balancer does not affect the non-supercharger related accessories run by the OEM drive belt. The PowerBond over-drive balancer comes in 5 different over-drive ratio’s depending on boost requirements it also features the same material and extreme pressure-bonded process as PowerBond SFI race series harmonic balancers and are made in Wagga Wagga, NSW.
• Fuel pump – More air needs more fuel and for the OEM LSA supercharger equipped upgrade packages, we chose the drop in 1000hp fuel pump from KPM in Edwardstown, South Australia. The factory LSA fuel pump supports a good amount of power but fuel pressure drops off even with a moderate power increase. To avoid the probability of leaning out the engine we install a higher flowing aftermarket system. The fuel system utilizes a Bosch motorsport fuel pump and simply replaces the existing OEM fuel module to deliver cool dense fuel to support power up to 1000hp on the race track as well as delivery for perfect manners in day-to-day city traffic.
• Cam package (LSA engine) – Utilizing the latest in Spintron technology, Brian Tooley Racing (BTR) in Kentucky, USA lead the way in valvetrain component design. The Spintron machine allows BTR to effectively test and design camshaft and valvetrain products to ensure stability and longevity like no other device. HPF is not shy in leveraging BTR’s extensive testing and as such, our product list for the cam package includes BTR’s camshaft, platinum dual valve springs and V2 rocker trunnions. Supporting the BTR components, we use Australian made Rollmaster heavy duty single row timing chains and Crow Cams pushrods. Cam selection should be based on driving expectations and should be discussed with one of our HPF representatives. We recommend new hydraulic lifters in higher milage engines.
• Cylinder Heads – The LSA, like all other LS based engines, benefits from accurate CNC cylinder head porting. We use Higgins Race Heads out of Dandenong Victoria exclusively for all of our cylinder head porting requirements. As well as increased intake and exhaust flow, the heads are thoroughly reconditioned and fitted with Brian Tooley Racing platinum dual valve springs. The heads are reassembled onto your engine with new GM LS9 head-gaskets, 240,000psi head studs and new set of genuine LS7 Lifters are fitted.