
HKS 2.5L High Compression Step 1 Kit Toyota GR86 FA24 22-25
HKS 2.5L CAPACITY UPGRADE KIT STEP 1 FOR TOYOTA GR86 ZN8 SUBARU
Unlock the full potential of your FA24 engine with the HKS 2.5L Capacity Upgrade Kit STEP 1, developed for the Toyota GR86 (ZN8) and Subaru BRZ (ZD8). Designed to increase engine displacement to 2.5L, this kit delivers improved torque and responsiveness across the rev range — perfect for enthusiasts looking for balanced power and enhanced drivability.
Crafted with HKS’s renowned precision and durability, this kit is ideal for street performance builds and forms a strong foundation for future tuning stages.
Key Features:
- Increases engine displacement from 2.4L to 2.5L
- Designed for FA24 engine platforms (GR86 ZN8 / BRZ ZD8)
- Improves torque, response, and drivability
- Precision-engineered components for high reliability
- Ideal for STEP 1 performance upgrades
- Developed and tested by HKS for balanced performance gains
- Part Number: 21004-AT008
Step up your build with confidence — trust HKS to deliver proven power and durability.
HKS 2.5L High Compression Step 1 Kit Toyota GR86 FA24 22-25
HKS 2.5L CAPACITY UPGRADE KIT STEP 1 FOR TOYOTA GR86 ZN8 SUBARU
Unlock the full potential of your FA24 engine with the HKS 2.5L Capacity Upgrade Kit STEP 1, developed for the Toyota GR86 (ZN8) and Subaru BRZ (ZD8). Designed to increase engine displacement to 2.5L, this kit delivers improved torque and responsiveness across the rev range — perfect for enthusiasts looking for balanced power and enhanced drivability.
Crafted with HKS’s renowned precision and durability, this kit is ideal for street performance builds and forms a strong foundation for future tuning stages.
Key Features:
- Increases engine displacement from 2.4L to 2.5L
- Designed for FA24 engine platforms (GR86 ZN8 / BRZ ZD8)
- Improves torque, response, and drivability
- Precision-engineered components for high reliability
- Ideal for STEP 1 performance upgrades
- Developed and tested by HKS for balanced performance gains
- Part Number: 21004-AT008
Step up your build with confidence — trust HKS to deliver proven power and durability.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
HKS 2.5L CAPACITY UPGRADE KIT STEP 1 FOR TOYOTA GR86 ZN8 SUBARU
Unlock the full potential of your FA24 engine with the HKS 2.5L Capacity Upgrade Kit STEP 1, developed for the Toyota GR86 (ZN8) and Subaru BRZ (ZD8). Designed to increase engine displacement to 2.5L, this kit delivers improved torque and responsiveness across the rev range — perfect for enthusiasts looking for balanced power and enhanced drivability.
Crafted with HKS’s renowned precision and durability, this kit is ideal for street performance builds and forms a strong foundation for future tuning stages.
Key Features:
- Increases engine displacement from 2.4L to 2.5L
- Designed for FA24 engine platforms (GR86 ZN8 / BRZ ZD8)
- Improves torque, response, and drivability
- Precision-engineered components for high reliability
- Ideal for STEP 1 performance upgrades
- Developed and tested by HKS for balanced performance gains
- Part Number: 21004-AT008
Step up your build with confidence — trust HKS to deliver proven power and durability.



















