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ACT Subaru 04-20 WRX STI Mod Twin HD Street Kit Sprung Mono-Drive Hub Torque Capacity 700ft/lbs

$2025.02

On Backorder — Expected to ship by Apr 24, 2026

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ACT's T1S-S05 Mod Twin HD Sprung Street Clutch Kit for high-powered AWD Subarus. Handles 700 ft/lbs torque with a solid pedal feel.

Key Features

  • Dual organic friction plates — Handles up to 700 ft/lbs of torque.
  • Sprung Mono-Drive hub assembly — Reduces driveline shock and extends input shaft life.
  • CNC-machined and dynamically balanced flywheel — Ensures smooth operation.
  • Exclusive heat-treated diaphragm spring — Provides a consistent, light pedal feel.
  • Steel-backed ceramic friction plates — Deliver stable friction and good heat capacity for long clutch life.
  • Modular design — Allows for individual component replacement and rebuilding.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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About this part

Product Details

T1S-S05 Mod-Twin 225 HD Sprung Street Kit is designed for high powered AWD street cars. It unites uncompromised pedal feel, durability, engagement quality with very high torque capacity by combining twice the organic friction surfaces with an ultra-durable spring center Mono-Drive hub in a completely modular design. Each diaphragm spring endures an exclusive four-stage heat treating process providing a consistent light pedal feel. Steel-backed Friction Plates with high quality organic friction materials deliver stable friction coefficient, good heat capacity and long clutch life. These Friction Plates uniformly transfer torque to the Mono-Drive sprung hub assembly which extends input shaft life and reduces driveline shock from torsional vibration. This kit includes a CNC-machined and dynamically balanced flywheel, pressure plate cover, diaphragm spring, face, puck-style ceramic friction plates, sprung Mono-Drive hub assembly, floater, patented Monoloc Collar, release bearing, alignment tool and pilot bearing (if needed). Mod-Twin clutches are fully rebuildable and most components can be ordered separately.

Description

ACT Mod-Twin 225 Heavy Duty Sprung Street Clutch Kit

Specifications

Brand
ACT
Manufacturer Part #
T1S-S05
UPC
842385025281

Frequently Asked Questions

ACT Subaru 04-20 WRX STI Mod Twin HD Street Kit Sprung Mono-Drive Hub Torque Capacity 700ft/lbs

$2025.02