Description
The ACT Mod-Twin 225 Extreme Sprung Race Clutch Kit (T2RS-B05) is engineered for high-performance BMW 3.0L Turbo applications powered by N54 and N55 engines. Designed for aggressive launches, rapid shifting, and demanding racing environments, this 225mm twin-disc clutch combines high-friction ceramic puck-style friction plates with a durable Mono-Drive sprung hub assembly in a fully modular, rebuildable design.
With a 1,270 ft-lbs. torque capacity, the ACT Mod-Twin 225 XT provides 314% greater torque capacity than OE, making it suitable for high-output and heavily modified BMW applications. The Xtreme pressure plate is designed to provide the clamping force required for high-torque applications while maintaining a consistent and relatively light pedal feel.
The two ceramic friction surfaces deliver a high coefficient of friction, excellent heat capacity, and long clutch life. The friction plates transfer torque through the Mono-Drive sprung hub assembly, which helps extend transmission input shaft life and reduce driveline shock caused by torsional vibration.
Each diaphragm spring undergoes ACT's exclusive four-stage heat-treating process to promote consistent performance and pedal feel. The lightweight twin-disc configuration is designed to support quick shifting while providing the torque capacity required for serious performance use.
The 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 when required.
ACT Mod-Twin clutches are fully rebuildable, and most components can be ordered separately, providing a long-term, serviceable solution for racing and high-performance applications.
Features and Benefits
- 1,270 ft-lbs. torque capacity
- 314% greater torque capacity than OE
- 225mm twin-disc clutch design
- Xtreme pressure plate
- Sprung Mono-Drive hub assembly
- Ceramic puck-style friction plates
- High coefficient of friction
- High heat capacity
- Long clutch service life
- Aggressive engagement characteristics
- Quick shifting capability
- Light pedal effort
- Helps reduce driveline shock and torsional vibration
- Helps extend transmission input shaft life
- Four-stage heat-treated diaphragm spring
- CNC-machined and dynamically balanced flywheel
- Fully rebuildable modular design
- Most components available separately
- 100% clamp-load tested
- Balanced and SFI certified
Clutch Feel
The ACT Mod-Twin 225 XT Sprung Race Clutch provides predictable aggressive engagement, light pedal effort, and quick shifting. Depending on the vehicle and transmission, some start-off judder and OE-to-moderate transmission gear noise may be experienced.
Durability and Life
The forged aluminum cover, Mono-Drive sprung hub, specially treated diaphragm spring, premium friction materials, and hardened wear points are designed to withstand demanding performance conditions and provide long service life.
Quality
ACT combines robust construction, carefully selected materials, strategic engineering features, close manufacturing tolerances, and high heat tolerance to deliver a twin-disc clutch designed for serious performance use.
Recommended Use
- Drag Racing
- Road Racing
- Rally Racing
- High-Powered AWD Applications
- High-Output BMW N54 Builds
- High-Output BMW N55 Builds
- Turbocharged BMW Performance Applications
ACT Mod-Twin Difference
ACT's Mod-Twin design addresses common tradeoffs associated with high-performance twin-disc clutches by combining high torque capacity, durable construction, serviceability, and controlled driveline characteristics. The result is an ultra-durable, customer-serviceable, long-lasting clutch with very high torque capacity. All ACT Mod-Twin clutches are 100% clamp-load tested, balanced, and SFI certified.
Specifications
| Specification | Details |
|---|---|
| Brand | ACT |
| Product | Mod-Twin 225 Extreme Sprung Race Clutch Kit |
| Part Number | T2RS-B05 |
| Product Weight | 33.1 lbs. |
| Torque Capacity | 1,270 ft-lbs. |
| Torque Capacity Over OE | 314% |
| Disc Material | Organic |
| Friction Material | Ceramic puck-style friction plates |
| Clutch Disc Diameter | 8.8 inches / 225mm |
| Input Shaft Diameter | 1.375 inches |
| Pressure Plate Type | Xtreme |
| Clutch Type | Twin Disc |
| Hub Type | Sprung Mono-Drive |
| Warranty | 12 Months |
| SFI | 1.2 |
| UPC | 00842385031206 |
Fitment
BMW 3 Series
- 2007 BMW 335i Base — 3.0L L6 GAS FI 2979cc DOHC
- 2007 BMW 335xi Base — 3.0L L6 GAS FI 2979cc DOHC
- 2008 BMW 335i Base — 3.0L L6 GAS FI 2979cc DOHC
- 2008 BMW 335xi Base — 3.0L L6 GAS FI 2979cc DOHC
- 2009 BMW 335i Base — 3.0L L6 GAS FI 2979cc DOHC
- 2009 BMW 335i xDrive Base — 3.0L L6 GAS FI 2979cc DOHC
BMW 1 Series
- 2008 BMW 135i Base — 3.0L L6 GAS FI 2979cc DOHC
- 2009 BMW 135i Base — 3.0L L6 GAS FI 2979cc DOHC
BMW 5 Series
- 2008 BMW 535i Base — 3.0L L6 GAS FI 2979cc DOHC
- 2008 BMW 535xi Base — 3.0L L6 GAS FI 2979cc DOHC
- 2009 BMW 535i Base — 3.0L L6 GAS FI 2979cc DOHC
- 2009 BMW 535i xDrive Base — 3.0L L6 GAS FI 2979cc DOHC
Fitment note: The supplied manufacturer data contains repeated entries for several applications. Duplicate fitment records have been consolidated above without removing any unique vehicle applications.
