Description

The HKS LA Clutch Kit is a high-performance drivetrain upgrade engineered to handle the significant torque increases from forced induction and aggressive tuning on the GR86/BRZ. Designed to withstand up to 440 N·m (45 kgf·m) of torque and support an estimated 310kW (420PS), this kit provides an overwhelming capacity for a single-disc clutch. It masterfully balances extreme durability with surprisingly manageable pedal effort and refined driveability, making it the definitive clutch solution for supercharged, turbocharged, and high-output naturally aspirated builds.

Product Highlights

⚙️ Massive Torque Capacity for Forced Induction
With an allowable torque rating of 440 N·m, this clutch is engineered to reliably handle the output of the HKS GT2 Supercharger Pro Kit and the HKS Bolt-On Turbo Kit (within its torque range). It eliminates clutch slippage under high-load conditions, ensuring power is fully transmitted to the wheels during circuit driving, drag launches, and spirited street use.

🦶 Near-Stock Pedal Feel with Reinforced Clamping
Despite its high clamp load, HKS engineered the diaphragm spring to provide a pedal force only 26% heavier than stock. This achieves a remarkable balance, offering the durability of a competition-grade clutch without the leg fatigue typically associated with heavy-duty units, making it suitable for daily driving.

🔥 Advanced MG Composite Facing Material
The kit features a new Φ230mm “MG Composite” clutch disc. This material utilizes high-strength, heat-resistant fibers to maintain a stable friction coefficient and resist wear even at extreme temperatures. This results in consistent bite, a smooth engagement for street starts, and unwavering performance on track.

🔇 Refined & Quiet Operation with Strap Drive
The clutch cover employs a strap drive mechanism instead of traditional spring fingers. This eliminates chatter and rattling noises when the clutch is disengaged, providing quiet operation in residential areas. The disc also includes a damper spring to reduce transmission gear rattle and absorb shock, protecting the drivetrain.

⚡ Lightweight Flywheel for Sharper Response
The kit includes a lightweight 5.5kg flywheel (55% lighter than stock). This significant reduction in rotational mass dramatically improves engine revving speed and throttle response, making the car feel more eager and agile, especially in the low-to-mid RPM range.

Technical Specifications

• Product Name: LA Clutch Kit

• Model Code: 26010-AT002

• Compatibility: Toyota GR86 / Subaru BRZ (ZN8/ZD8, FA24, MT Only).

• Clutch Type: Single Disc, Push-Type

• Torque Capacity: Up to 440 N·m (45 kgf·m).

• Flywheel Weight: 5.5 kg (vs. stock 10 kg).

• Kit Weight: 11.7 kg (vs. stock 15.9 kg).

• Key Feature: MG Composite disc, Strap Drive cover, lightweight flywheel.

• Includes: Clutch cover, clutch disc, flywheel, bolts, pilot bearing.

Performance Philosophy

• Goal: To create a clutch system that serves as an invisible, reliable bridge between a high-torque engine and the drivetrain. The focus is on transparent performance—providing immense capacity and durability without introducing harshness, excessive noise, or unbearable pedal weight that compromises the driving experience.

• Focus: The essential supporting modification for high-power builds. It is designed for owners who have invested in forced induction or serious NA tuning and need a clutch that matches their engine’s new capability, all while preserving the car’s street manners.

Installation & Usage Notes

• 🔧 Professional Installation Required
  Clutch replacement is a significant drivetrain service. Installation must be performed by a qualified technician to ensure proper flywheel seating, clutch alignment, and hydraulic system adjustment.

• ⚠️ Important Usage & Break-In Guidelines

  • Break-in Period: A proper break-in of 500-1000 km of normal street driving is essential to seat the new friction material properly. Avoid aggressive launches or high-load situations during this period.

  • Acceptable Noises: Some transmission gear “chatter” or rattle at idle or low RPM is normal with lightweight flywheel setups and is not indicative of a fault.

  • Torque Limits: Adhere to the stated 440 N·m limit. Exceeding this, especially with aggressive launches on sticky tires, can lead to slippage and damage.