HKS V2 to V3 Upgrade Kit for GT2 Supercharger Pro Kit

2013–2020 Subaru BRZ / 2013–2016 Scion FR-S / 2017–2020 Toyota 86

12002-KK002

Overview:

The HKS V2 to V3 Upgrade Kit is designed to enhance the performance of your GT2 Supercharger Pro Kit on Subaru BRZ, Scion FR-S, and Toyota 86 models equipped with the FA20 engine. This upgrade kit replaces the Version 2 supercharger components with the improved Version 3 parts, optimized for use with 91 octane gasoline. By upgrading, you unlock significant power gains and improved drivability, making it an excellent choice for enthusiasts seeking more performance without compromising reliability.

Whether you drive daily or enjoy spirited weekend runs, this kit helps your engine deliver stronger output and better throttle response. It is especially beneficial for those aiming to maximize power with pump gas or further enhance performance when combined with E85 fuel and supporting upgrades.

Key Features:

This upgrade kit includes several redesigned components that work together to boost your vehicle’s supercharger efficiency and output:

• Enlarged suction pipe joint diameter for improved airflow into the compressor.
• Increased pulley diameter from 3.54 inches to 4.33 inches, optimized for 91 octane fuel to enhance engine output.
• Modified supercharger bracket layout to accommodate the larger pulley size.
• Compatible with GT SUPERCHARGER SYSTEM ZN6/ZC6 FA20 Version 2, upgrading it to Version 3 specifications.
• Delivers approximately 255 horsepower on 91 octane fuel, representing an 80 horsepower increase over stock.
• When combined with E85 fuel, upgraded fuel pump, and injectors, power can reach up to 320 horsepower, a 150 horsepower gain over stock.

Construction & Design:

The upgrade kit features precision-engineered components designed for durability and performance. The suction pipe’s enlarged diameter reduces intake restrictions, while the larger pulley improves supercharger efficiency by increasing boost delivery. The supercharger bracket has been carefully redesigned to maintain proper alignment and fitment with the new pulley size, ensuring reliable operation without compromising engine bay packaging.

All parts are manufactured to HKS’s high standards, ensuring compatibility and long-term durability under demanding conditions.

Performance & Sound

• With 91 octane fuel, the upgrade increases engine output to approximately 255 horsepower, an 80 horsepower improvement over the factory setup.
• Combined with E85 fuel, upgraded fuel pump, and injectors, the system can produce up to 320 horsepower, a substantial 150 horsepower gain over stock.
• The larger pulley and improved airflow contribute to enhanced throttle response and a more aggressive supercharger sound character.

Installation & Fitment:

This upgrade kit is designed specifically for the GT2 Supercharger Pro Kit installed on Subaru BRZ (2013–2020), Scion FR-S (2013–2016), and Toyota 86 (2017–2020) models with the FA20 engine. It upgrades the Version 2 supercharger system to Version 3 by replacing key components.

Installation requires swapping out the suction pipe, pulley, and supercharger bracket. The kit is engineered to fit using existing mounting points, but compatibility with automatic transmission models has not been confirmed. No cutting or drilling is indicated, but professional installation and tuning are recommended to ensure optimal performance and reliability.

What's Included:

• Enlarged suction pipe for compressor inlet
• 4.33-inch diameter supercharger pulley
• Modified supercharger bracket to fit the larger pulley
• Hardware necessary for installation
• Instructions for upgrading from Version 2 to Version 3

Ideal For:

• Owners of Subaru BRZ, Scion FR-S, and Toyota 86 with the GT2 Supercharger Pro Kit Version 2 seeking increased power and efficiency.
• Performance enthusiasts looking to maximize output on 91 octane pump gas.
• Drivers planning to upgrade fuel system components and run E85 for higher horsepower gains.
• Those wanting a reliable, bolt-on supercharger upgrade without extensive modifications.