The HKS Power Editor Vehicle-Specific Kit is a straightforward, highly effective plug-and-play tuning solution designed to deliver a significant and immediate power increase for the GR Corolla. By simply intercepting the boost pressure sensor signal, this complete kit allows you to safely raise boost levels, resulting in stronger mid-range torque and enhanced acceleration throughout the rev range. With pre-loaded HKS-tested data and a dedicated installation harness, it offers a remarkable balance of convenience and proven performance, compatible with both standard and Morizo Edition models.

Product Overview 

This system provides an accessible entry into performance tuning by focusing on a key parameter: boost pressure. It works alongside the factory ECU by recalibrating the signal from the boost sensor, instructing the turbocharger’s electronic wastegate actuator to produce more boost safely within the engine’s tolerances. The kit includes everything needed for a clean, reversible installation, making it an ideal first performance modification.

Product Highlights

⚡ Proven, Out-of-the-Box Power Gains
Installed with the included HKS-tested preset map, the Power Editor delivers tangible results:

• Maximum Power Increase: +13kW (17PS)

• Maximum Torque Increase: +38Nm (3.9kgf·m), achieving 392Nm (39.9kgf·m) total.

• Boost Increase: Raises maximum boost pressure from 157 kPa to 172 kPa.
  Gains are most significant in the 2,700 – 4,200 RPM range, providing a stronger, more responsive feel during daily driving and acceleration.

🔌 True Plug-and-Play Installation
The kit includes a vehicle-specific harness that connects between the factory boost pressure sensor and its wiring via simple couplers—no wire cutting or splicing required. The compact main unit can be discreetly mounted, keeping installation clean and completely reversible using the included reset connector.

🎯 Solves Modern Turbo Control Limitations
Specifically engineered for turbo vehicles with electronic or vacuum-controlled wastegate actuators that cannot be managed by traditional manual boost controllers. The Power Editor provides a safe, electronic solution to increase boost on these modern systems.

💻 Optional Customization with Easy Writer
While powerful out of the box, the included USB cable allows connection to a Windows PC running the free HKS Easy Writer software. This enables advanced users to review data logs or create custom boost maps for fine-tuning, though it is not required for operation.

Technical Specifications

• Product Name: Power Editor Vehicle-Specific Kit

• Model Code: 42018-AT021

• Compatibility: Toyota GR Corolla (GZEA14H, G16E-GTS, December 2022 – February 2025 production). Compatible with Morizo Edition. *Compatibility with post-March 2025 models not confirmed.*

• Kit Includes: Power Editor main unit, GR Corolla-specific plug-and-play intercept harness, reset connector, USB cable for PC connection.

• Function: Adjusts boost pressure sensor signal to safely increase turbocharger boost.

• Key Performance: Up to +17PS & +3.9kgf·m.

• Software: HKS Easy Writer for Power Editor (Free Download for Windows).

Performance Philosophy

• Goal: To provide a simple, reliable, and noticeable increase in performance that enhances the driving experience without complexity or risk. The focus is on accessibility, safety, and real-world drivability.

• Focus: The perfect first performance upgrade. It is designed for the GR Corolla owner who wants a significant power bump with minimal hassle, no need for a custom dyno tune, and the peace of mind that comes with HKS-engineered calibration.

Installation & Usage Notes

• 🔧 Straightforward DIY or Professional Installation
  The harness design allows for a relatively simple installation. However, ensuring connections are secure and the unit is properly mounted is crucial. Professional installation is always recommended for optimal results.

• ⚠️ System Requirements & Recommendations

  • Wide Compatibility: Works on stock vehicles and those with HKS bolt-on parts. Compatible with factory ECU data.

  • Reset Function: The included reset connector allows instant reversion to the stock signal for dealership visits or comparison.

  • Not a Full ECU Tune: This system adjusts boost only. For comprehensive fuel, timing, and multi-dimensional control, the more advanced Power Editor R system is recommended.

■ Preset Data Overview and Specifications
● HKS data preset for GR Corolla (Japan specification)

■ Performance