Sydney Performance & Parts

HDI GT2 ST INTERCOOLER KIT FOR MAZDA3 MPS (SILICONE)

SKU: HDI-IK-MPS3-GT2-ST

AUD 699.00

In stock

Brand: HDI

HDi GT2 ST Front Mount Intercooler Kit for Mazda 3 MPS – Silicone Hose Kit | HDI-IK-MPS3-GT2-ST

Upgrade your Mazda 3 MPS with the HDi GT2 ST Performance Front Mount Intercooler Kit, designed for turbocharged Mazda enthusiasts seeking improved charge-air cooling, efficient airflow and consistent engine performance. Featuring HDi's GT2 intercooler technology and a vehicle-specific installation package with silicone hoses, this performance upgrade is designed for compatible Mazda 3 MPS applications.

Whether you're building a responsive street car, upgrading a modified turbocharged engine or preparing your Mazdaspeed 3 for spirited driving, the HDi GT2 ST intercooler kit provides a performance-focused solution for managing intake air temperatures and supporting efficient turbocharger operation.

High-Performance GT2 Intercooler Technology

The HDi GT2 ST intercooler uses a tube-and-fin core designed to transfer heat efficiently from compressed intake air. When a turbocharger compresses air, its temperature rises. An effective intercooler removes some of this heat before the air enters the engine, helping maintain denser intake air and more consistent performance under boost.

The GT2 core features a 16-row design intended to balance cooling efficiency, airflow capacity and pressure drop. Its large front-mount configuration provides an expanded cooling surface compared with many factory intercooler arrangements, making it a practical upgrade for enthusiasts looking to improve their turbocharged Mazda's charge-air cooling system.

Designed for the Mazda 3 MPS

The HDi GT2 ST intercooler kit is designed for compatible Mazda 3 MPS applications, including the BK-generation Mazda Mazdaspeed 3. Its front-mount layout positions the intercooler in the path of incoming airflow, helping dissipate heat during everyday driving and demanding boost conditions.

The kit includes silicone hose connections to support installation into the compatible charge-air system. Selecting the correct vehicle-specific configuration helps ensure appropriate mounting, piping alignment and reliable connections.

Before ordering, verify the vehicle generation and exact kit compatibility, particularly if your Mazda has an aftermarket turbocharger, modified intake piping or other engine upgrades.

Front-Mount Design for Effective Charge-Air Cooling

A front-mount intercooler places the cooling core at the front of the vehicle, where it can receive airflow through the front grille. This arrangement offers a substantial cooling surface and can be advantageous for turbocharged vehicles that experience repeated periods of boost.

The HDi GT2 ST design aims to balance core size, airflow and cooling efficiency while keeping the installation suited to the intended Mazda 3 MPS application.

An appropriately selected intercooler can help reduce intake air temperatures and support consistent engine operation. Actual results depend on ambient temperature, vehicle speed, boost pressure, turbocharger efficiency and the condition of the existing engine and cooling system.

Lightweight Tube-and-Fin Construction

The HDi GT2 intercooler features a lightweight tube-and-fin core engineered for performance applications. Its construction is intended to deliver effective heat transfer while managing the weight and airflow requirements of a front-mount intercooler upgrade.

The core measures approximately 780 × 290 × 80 mm, providing a substantial cooling area for compatible turbocharged applications. The polished seamless side tanks give the intercooler a clean, performance-oriented appearance that complements a modified Mazda engine bay.

Silicone Hose Kit for Reliable Connections

This GT2 ST package includes silicone hoses designed to connect the intercooler with the compatible charge-air piping. Quality hose connections are important for maintaining boost pressure and minimising air leaks throughout the intake system.

Correctly installed silicone hoses can provide flexibility and durability under the temperature and pressure conditions associated with turbocharged driving. The supplied hose configuration and any additional clamps or mounting hardware should be checked against the exact kit contents before purchase.

Key Features and Benefits

  • HDi GT2 ST performance intercooler: Designed for compatible Mazda 3 MPS turbocharged applications.

  • Front-mount intercooler configuration: Positioned to take advantage of incoming airflow for heat dissipation.

  • 16-row tube-and-fin core: Designed to balance cooling efficiency and airflow capacity.

  • Large cooling surface: Approximately 780 × 290 × 80 mm core dimensions.

  • 3-inch outlet: As listed for the GT2 ST intercooler core; confirm all connection dimensions before installation.

  • Silicone hose kit included: Supports connection to the compatible charge-air system.

  • Polished seamless side tanks: Provides a clean aftermarket performance finish.

  • Turbocharged performance support: Helps manage intake air temperatures under boost.

  • Suitable for modified builds: Can form part of a wider turbocharger and engine performance package when correctly matched.

Product Specifications

  • Brand: HDi – Hybrid Development International

  • Product name: GT2 ST Front Mount Intercooler Kit

  • Product code: HDI-IK-MPS3-GT2-ST

  • Vehicle application: Compatible Mazda 3 MPS / Mazda Mazdaspeed 3 applications

  • Generation: BK Generation 1 listing

  • Intercooler type: Front-mount tube-and-fin

  • Core dimensions: Approximately 780 × 290 × 80 mm

  • Core design: 16-row GT2 tube-and-fin

  • Outlet size: 3 inches, as listed

  • Finish: Polished seamless side tanks

  • Included components: Intercooler kit with silicone hoses; confirm the full supplied hardware list before purchase

Why Upgrade Your Mazda 3 MPS Intercooler?

The intercooler is an important component in a turbocharged engine's intake system. When intake air temperatures become excessive, air density can decrease and engine performance may become less consistent. An appropriately sized intercooler helps remove heat from the compressed air before it reaches the engine.

For Mazda 3 MPS owners running increased boost or other performance modifications, a suitable intercooler can help support stable intake temperatures and efficient airflow. Even on a relatively standard vehicle, upgrading the intercooler may be worthwhile when the factory system struggles to manage heat under demanding conditions.

The HDi GT2 ST combines a performance-oriented core with silicone hose connections in a package designed for compatible Mazda MPS applications.

Installation and Compatibility

Professional installation is recommended to ensure correct intercooler mounting, secure hose connections and suitable clearance around the vehicle's front-end components. After installation, inspect all connections and check the charge-air system for leaks before operating the vehicle under boost.

Confirm the exact Mazda 3 MPS generation and model year before ordering. The BK-generation Mazda 3 MPS and BL-generation Mazda 3 MPS may require different intercooler kits and installation arrangements.

If your vehicle has a modified turbocharger, upgraded engine management or other performance modifications, ensure the intercooler is appropriate for your complete setup. Supporting modifications and professional tuning may be required depending on the vehicle's configuration.

Choose HDi GT2 ST Performance

For Mazda 3 MPS enthusiasts seeking an upgraded front-mount intercooler, the HDi GT2 ST offers a performance-focused combination of tube-and-fin cooling technology, a large core and silicone hose connections.

Designed to help manage charge-air temperatures and support efficient turbocharged operation, this kit is a practical consideration for street-driven Mazdaspeed builds and modified performance vehicles.

Upgrade your Mazda 3 MPS with the HDi GT2 ST Front Mount Intercooler Kit and build a turbocharged setup focused on cooling efficiency, airflow and consistent performance.

Confirm your vehicle's compatibility and the complete kit contents before ordering.

Product Code: HDI-IK-MPS3-GT2-ST

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