Description

Top photo: HKS core. Bottom photo: Genuine Toyota core comes with the vehicle

Top photo: HKS core. Bottom photo: Genuine Toyota core comes with the vehicle

The HKS Laminated Intercooler Kit is a direct-replacement, front-mounted intercooler system engineered to unlock and sustain the high-output potential of the GR Yaris’s turbocharged G16E-GTS engine. By significantly increasing core volume and utilizing an advanced “laminated type” core construction, it delivers dramatically improved cooling efficiency with minimal pressure loss. This ensures consistent power delivery, protects against heat soak during spirited driving or track use, and forms a foundational upgrade for any performance build.

Product Overview & Purpose

As engine power increases, the stock intercooler can become a thermal bottleneck, causing intake air temperatures (IAT) to rise and leading to power loss and increased risk of detonation. This HKS kit directly replaces the factory unit with a larger, more efficient core that dramatically increases thermal capacity and cooling surface area. The result is cooler, denser air entering the engine, which translates to more consistent power, improved reliability, and a stronger platform for further tuning.

Product Highlights

❄️ Significant Cooling Capacity Increase
The HKS core features substantially increased dimensions: 645x205x105mm compared to the stock 645x145x80mm. This represents a major increase in frontal area and thickness, providing a massive boost in thermal mass and cooling surface to manage heat effectively, especially in the mid-to-high RPM range where heat buildup is greatest.

⚙️ Advanced Laminated Core Technology
Utilizes a high-performance “laminated type” core, manufactured in Japan. This construction is designed to maximize heat transfer from the charged air to the atmosphere while minimizing pressure drop across the core. The optimized fin design ensures excellent cooling without excessively restricting airflow to the radiator, helping to maintain stable engine coolant temperatures.

🔧 Direct OEM Replacement Fitment
Designed as a direct bolt-on replacement for the factory intercooler, maintaining all original mounting points and connections. This ensures a clean, integrated installation that looks factory-original while providing a substantial performance upgrade.

📈 Proven Performance Gains
Internal HKS testing demonstrates the intercooler’s effectiveness. The data shows it maintains significantly lower intake air temperatures compared to stock under load, directly contributing to sustained power output and torque, particularly during repeated pulls or extended hard driving.

Technical Specifications & Compatibility

• Product Name: Laminated Intercooler Kit

• Model Code: 13001-AT008

• Compatibility: Toyota GR Yaris (GXPA16, G16E-GTS, September 2020+). For Gen2 (04/2024+) models, the HKS Piping Kit (13002-AT002) is required.

• Core Type: Laminated Type (Bar & Plate Construction)

• Core Size: 645mm (W) x 205mm (H) x 105mm (D)

• Mounting: Front-mounted, direct OEM replacement.

• Note: For use with the factory water spray system, the HKS Water Spray Bracket (13999-AT001) is required. Not for GR-DAT vehicles.

Performance Philosophy

• Goal: To provide a critical cooling system upgrade that ensures power consistency and engine safety, especially when increasing boost or driving aggressively. The focus is on thermal management, efficiency, and direct integration as a supporting mod that enables higher performance levels.

• Focus: A mandatory supporting modification for any tuned or frequently tracked GR Yaris. It is the essential first step in managing intake temperatures for owners running increased boost via a tune (like the HKS Power Editor), and a highly beneficial upgrade even for stock vehicles driven hard.

Installation & Synergy Notes

• 🔧 Professional Installation Recommended
  Installation involves removing the front bumper and swapping the intercooler core. For optimal performance and to ensure all connections are leak-free, professional installation is recommended.

• ⚠️ Important Compatibility Notes

  • Gen2 Models (04/2024+): Must be used with the HKS Piping Kit (13002-AT002) due to changes in the factory charge pipe routing.

  • Water Spray: If retaining the factory intercooler spray, the separate HKS bracket (13999-AT001) is required for proper fitment.

  • System Synergy: This intercooler works perfectly with the HKS Carbon Racing Suction and Power Editor R to create a complete, optimized intake and tuning package.

The operating instructions manual

When using the intercooler water spray together, the separately sold water spray bracket (part number 13999-AT001) is required.

The Intercooler water spray bracket 13999-AT001