The ACT Mod‑Twin 225 HD Sprung street kit is made for Subaru 2004–2020 WRX STI applications, offering high torque capacity with a sprung Mono‑Drive hub that reduces driveline shock and extends input shaft life. Steel‑backed organic friction plates provide stable engagement and heat resistance for demanding street use. The fully rebuildable kit includes a CNC balanced flywheel and all major clutch components.
Product Description
ACT Subaru 04-20 WRX STI Mod Twin HD Street Kit Sprung Mono-Drive Hub Torque Capacity 700ft/lbs
Additional Product Details
Mod-Twin 225 HD Sprung Street
Features & Benefits
"Excellence in Performance", backed by the best one-year warranty in the industry!
Manufacturer Description
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.