ACT 07-18 BMW 3.0L Turbo (N54/N55) Mod-Twin 225 XT Rigid Race - actT2R-B01

The ACT Mod-Twin 225 XT Rigid Race Clutch Kit is engineered for high-powered BMW applications requiring exceptional torque capacity, rapid shifting, and aggressive clutch engagement. Designed around ACT's modular twin-disc platform, this T2R-B01 Mod-Twin 225 XT Rigid Race Kit combines dual ceramic friction surfaces with a rigid Mono-Drive hub assembly to provide high heat capacity, strong torque transfer, and durability under demanding racing conditions.

The rigid Mono-Drive hub uses a solid chrome-moly construction that is heat treated for increased strength and durability while extending input shaft life through a continuous spline design. The lightweight rigid configuration is designed to support quicker shifts and consistent performance during aggressive launches and high-load driving.

Each diaphragm spring undergoes ACT's exclusive four-stage heat-treatment process to provide consistent clamping performance with light pedal effort. The puck-style ceramic friction plates offer a high coefficient of friction, excellent heat tolerance, and long service life. The twin-disc configuration increases the available friction surface while maintaining a compact 225 mm clutch diameter.

The kit includes a CNC-machined and dynamically balanced flywheel, pressure plate cover, diaphragm spring, face, puck-style ceramic friction plates, rigid Mono-Drive hub, floater, patented Monoloc Collar, release bearing, alignment tool, and pilot bearing where required. Mod-Twin clutches are fully rebuildable, and most components are available separately for service and replacement.

Key Features and Benefits

• Twin-disc 225 mm clutch design
• 1,270 ft-lbs. torque capacity
• 314% torque capacity over OE
• Xtreme pressure plate
• Ceramic puck-style friction material
• Rigid chrome-moly Mono-Drive hub
• Continuous spline design for improved input shaft durability
• Four-stage heat-treated diaphragm spring
• High heat capacity for demanding performance applications
• Lightweight rigid design for rapid shifting
• CNC-machined and dynamically balanced flywheel
• Patented Monoloc Collar
• Fully rebuildable modular clutch design
• Components can be ordered separately
• 100% clamp-load tested
• Dynamically balanced
• SFI 1.2 certified

Clutch Feel

The ACT Mod-Twin 225 XT Rigid Race clutch provides predictable aggressive engagement, light pedal effort, and quick shifting. Due to the rigid hub design and race-oriented friction characteristics, some start-off judder and moderate to increased transmission gear noise may occur.

Durability

The forged aluminum cover, rigid Mono-Drive hub, specially treated diaphragm spring, premium friction materials, and hardened wear points are designed to withstand demanding performance and racing conditions while providing long-term serviceability.

Recommended Use

• Drag Racing
• Road Racing
• Rally Racing
• High-powered performance applications

ACT Mod-Twin Advantage

ACT's Mod-Twin design addresses common compromises associated with high-performance twin-disc clutches by combining high torque capacity, durable materials, modular construction, serviceability, and carefully controlled tolerances. Each clutch is clamp-load tested, balanced, and SFI certified to support consistent performance in demanding applications.

Specifications

Fitment

This ACT Mod-Twin 225 XT Rigid Race Clutch Kit is designed for the following BMW 3.0L turbocharged N54/N55 applications:

BMW 1 Series

• 2008 BMW 135i Base — 3.0L I6 GAS FI 2979cc DOHC
• 2009 BMW 135i Base — 3.0L I6 GAS FI 2979cc DOHC
• 2010 BMW 135i Base — 3.0L I6 GAS FI 2979cc DOHC
• 2011 BMW 135i Base — 3.0L I6 GAS FI 2979cc DOHC
• 2012 BMW 135i Base — 3.0L I6 GAS FI 2979cc DOHC
• 2013 BMW 135i Base — 3.0L I6 GAS FI 2979cc DOHC

BMW 3 Series

• 2007 BMW 335i Base — 3.0L I6 GAS FI 2979cc DOHC
• 2007 BMW 335xi Base — 3.0L I6 GAS FI 2979cc DOHC
• 2008 BMW 335i Base — 3.0L I6 GAS FI 2979cc DOHC
• 2008 BMW 335xi Base — 3.0L I6 GAS FI 2979cc DOHC
• 2009 BMW 335i Base — 3.0L I6 GAS FI 2979cc DOHC
• 2009 BMW 335i xDrive Base — 3.0L I6 GAS FI 2979cc DOHC
• 2010 BMW 335i Base — 3.0L I6 GAS FI 2979cc DOHC
• 2010 BMW 335i xDrive Base — 3.0L I6 GAS FI 2979cc DOHC
• 2011 BMW 335i Base — 3.0L I6 GAS FI 2979cc DOHC
• 2011 BMW 335i xDrive Base — 3.0L I6 GAS FI 2979cc DOHC
• 2011 BMW 335is Base — 3.0L I6 GAS FI 2979cc DOHC
• 2012 BMW 335i Base — 3.0L I6 GAS FI 2979cc DOHC
• 2012 BMW 335i xDrive Base — 3.0L I6 GAS FI 2979cc DOHC
• 2012 BMW 335is Base — 3.0L I6 GAS FI 2979cc DOHC
• 2013 BMW 335i Base — 3.0L I6 GAS FI 2979cc DOHC
• 2013 BMW 335i xDrive Base — 3.0L I6 GAS FI 2979cc DOHC
• 2013 BMW 335is Base — 3.0L I6 GAS FI 2979cc DOHC
• 2014 BMW 335i Base — 3.0L I6 GAS FI 2979cc DOHC
• 2014 BMW 335i xDrive Base — 3.0L I6 GAS FI 2979cc DOHC
• 2015 BMW 335i Base — 3.0L I6 GAS FI 2979cc DOHC
• 2015 BMW 335i xDrive Base — 3.0L I6 GAS FI 2979cc DOHC

BMW 4 Series

• 2014 BMW 435i Base — 3.0L I6 GAS FI 2979cc DOHC
• 2014 BMW 435i xDrive Base — 3.0L I6 GAS FI 2979cc DOHC
• 2015 BMW 435i Base — 3.0L I6 GAS FI 2979cc DOHC
• 2015 BMW 435i xDrive Base — 3.0L I6 GAS FI 2979cc DOHC
• 2016 BMW 435i Base — 3.0L I6 GAS FI 2979cc DOHC
• 2016 BMW 435i xDrive Base — 3.0L I6 GAS FI 2979cc DOHC

BMW 5 Series

• 2008 BMW 535i Base — 3.0L I6 GAS FI 2979cc DOHC
• 2008 BMW 535xi Base — 3.0L I6 GAS FI 2979cc DOHC
• 2009 BMW 535i Base — 3.0L I6 GAS FI 2979cc DOHC
• 2009 BMW 535i xDrive Base — 3.0L I6 GAS FI 2979cc DOHC
• 2010 BMW 535i Base — 3.0L I6 GAS FI 2979cc DOHC
• 2010 BMW 535i xDrive Base — 3.0L I6 GAS FI 2979cc DOHC
• 2011 BMW 535i Base — 3.0L I6 GAS FI 2979cc DOHC
• 2012 BMW 535i Base — 3.0L I6 GAS FI 2979cc DOHC
• 2013 BMW 535i Base — 3.0L I6 GAS FI 2979cc DOHC
• 2014 BMW 535i Base — 3.0L I6 GAS FI 2979cc DOHC
• 2015 BMW 535i Base — 3.0L I6 GAS FI 2979cc DOHC
• 2016 BMW 535i Base — 3.0L I6 GAS FI 2979cc DOHC

BMW M235i

• 2014 BMW M235i Base — 3.0L I6 GAS FI 2979cc DOHC
• 2015 BMW M235i Base — 3.0L I6 GAS FI 2979cc DOHC
• 2016 BMW M235i Base — 3.0L I6 GAS FI 2979cc DOHC

BMW Z4

• 2009 BMW Z4 sDrive35i — 3.0L I6 GAS FI 2979cc DOHC
• 2010 BMW Z4 sDrive35i — 3.0L I6 GAS FI 2979cc DOHC
• 2011 BMW Z4 sDrive35i — 3.0L I6 GAS FI 2979cc DOHC
• 2012 BMW Z4 sDrive35i — 3.0L I6 GAS FI 2979cc DOHC
• 2013 BMW Z4 sDrive35i — 3.0L I6 GAS FI 2979cc DOHC
• 2014 BMW Z4 sDrive35i — 3.0L I6 GAS FI 2979cc DOHC
• 2015 BMW Z4 sDrive35i — 3.0L I6 GAS FI 2979cc DOHC
• 2016 BMW Z4 sDrive35i — 3.0L I6 GAS FI 2979cc DOHC

European Applications

BMW 135i E82/E88

• 2009–2013 BMW 135i E82 [Euro] — 3.0L I6 FI Turbo
• 2009–2013 BMW 135i E88 [Euro] — 3.0L I6 FI Turbo

BMW 335i E90/E92/E93

• 2007–2013 BMW 335i E90 [Euro] — 3.0L I6 FI Turbo
• 2007–2013 BMW 335i E92 [Euro] — 3.0L I6 FI Turbo
• 2007–2013 BMW 335i E93 [Euro] — 3.0L I6 FI Turbo

BMW 335xi E90/E92

• 2007–2011 BMW 335xi E90/E92 [Euro] — 3.0L I6 FI Turbo

BMW 335i/335iX F30

• 2012–2015 BMW 335i F30 [Euro] — 3.0L I6 FI Turbo
• 2012–2015 BMW 335iX F30 [Euro] — 3.0L I6 FI Turbo

BMW 435i/435iX F32

• 2014–2016 BMW 435i F32 [Euro] — 3.0L I6 FI Turbo
• 2014–2016 BMW 435iX F32 [Euro] — 3.0L I6 FI Turbo

BMW 535i F10

• 2011–2016 BMW 535i F10 [Euro] — 3.0L I6 FI Turbo

BMW M235i F22/F23

• 2014–2016 BMW M235i F22 [Euro] — 3.0L I6 FI Turbo
• 2014–2016 BMW M235i F23 [Euro] — 3.0L I6 FI Turbo

BMW Z4 35i E89

• 2009–2016 BMW Z4 35i E89 [Euro] — 3.0L I6 FI Turbo

Important: The fitment data you provided contains repeated applications. I consolidated the duplicates above without removing the unique year/model/chassis applications. Also, the supplied specification says Disc Material: Ceramic, while the earlier XT Sprung version you provided listed Organic in its specifications but described ceramic friction plates. For this XT Rigid Race version, I retained Ceramic exactly as provided in the current source data.