ACT T2SS-N04 Mod-Twin 225 XT Sprung Street Kit for 1999-2002 Nissan Skyline R34

Vehicle Fitment

• 1999-2002 Nissan Skyline GT-R (R34)

Fitment Notes

• Designed for AWD manual-transmission R34 Skyline GT-R applications only
• Recommended for heavily modified RB26 builds needing more clamp load than the Heavy Duty (T1SS-N04) version of this kit provides

Features

• Twin-disc design doubles friction surface area for superior heat dissipation and holding power over a single-disc clutch
• 225mm XT (Xtreme) pressure plate delivers significantly higher clamp load than ACT's Heavy Duty plate for heavily modified engines
• Sprung Mono-Drive hub reduces drivetrain shock and provides smooth engagement for street driving
• Steel-backed, puck-style ceramic friction plates for stable friction coefficient and strong heat capacity
• Four-stage heat-treated diaphragm spring for a consistent pedal feel despite the increased clamp load
• Patented Monoloc Collar for reliable release bearing retention
• Fully modular design for long-term serviceability
• 100% clamp load tested and dynamically computer balanced for smooth high-RPM reliability

Specifications

• Disc Configuration: Twin disc (225mm)
• Disc Material: Ceramic (puck-style)
• Hub Type: Sprung Mono-Drive
• Pressure Plate Type: Xtreme (XT)
• Warranty: 12 Months

Included Components

• 1x CNC-machined, dynamically balanced flywheel
• 1x Pressure plate cover and diaphragm spring assembly
• 2x Puck-style ceramic friction plates (sprung Mono-Drive hub)
• 1x Floater
• 1x Patented Monoloc Collar
• 1x Release bearing
• 1x Alignment tool

Product Description

The ACT T2SS-N04 is a Mod-Twin 225 Extreme (XT) Sprung Street clutch kit engineered specifically for the 1999-2002 Nissan Skyline GT-R (R34). It steps up from ACT's Heavy Duty twin-disc kit for this platform (T1SS-N04) by pairing the same twin-disc, sprung Mono-Drive hub architecture with ACT's XT pressure plate, delivering substantially higher clamp load for heavily modified RB26 builds pushing well beyond stock power.

The sprung hub design still reduces drivetrain shock and torsional vibration despite the increased clamp load, keeping the clutch more streetable than a rigid-hub race setup. Steel-backed ceramic friction plates provide strong heat capacity, while the patented Monoloc Collar improves reliability at the release bearing interface - an important detail on high-clamp-load twin-disc setups that see repeated hard use.

This is a complete, modular kit including a CNC-machined and dynamically balanced flywheel, pressure plate, discs, floater, release bearing, and alignment tool. It's the right step up from the T1SS-N04 for R34 GT-R owners running power levels that exceed what the Heavy Duty version can reliably hold, while still wanting a sprung-hub clutch that's tolerable for street driving.