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Higher Clamp Load For Serious R34 GT-R Power
The ACT T2SS-N04 Mod-Twin 225 XT Sprung Street clutch kit steps up from the standard HD offering with an increased clamp load, giving RB26DETT-powered R34 GT-R owners more holding capacity for higher-output builds. Like other Mod-Twin kits, the T2SS-N04 doubles the organic friction surface area of a single-disc clutch, so it manages torque through the factory AWD driveline without the abrupt engagement typical of a full race clutch. The T2SS-N04 pressure plate uses ACT's four-stage heat-treated diaphragm springs, engineered to hold consistent clamp force through repeated high-load cycles. A chromoly XACT Streetlite flywheel ships as part of the T2SS-N04 kit, matched to the clutch assembly so the whole rotating system is balanced and ready to install together.
Key Features
- T2SS-N04 uses a 225mm Mod-Twin pull-type design rated up to 875 ft-lb of torque capacity
- Extreme Sprung Street clamp load, higher than the HD variant, for higher-output RB26DETT builds
- Doubled organic friction surface area for high-power AWD applications
- Four-stage heat-treated diaphragm springs for consistent clamp force
- Includes a chromoly XACT Streetlite flywheel matched to the T2SS-N04 kit
- Sprung Mono-Drive hub reduces driveline shock versus a rigid race disc
Fitment
| Year Range | Make | Model | Trim |
|---|---|---|---|
| 1999-2002 | Nissan | Skyline GT-R | R34 |
Specifications
| Detail | Value |
|---|---|
| MPN | T2SS-N04 |
| Clutch Diameter | 225mm |
| Design | Mod-Twin pull-type, sprung disc, Extreme clamp load |
| Torque Capacity | Up to 875 ft-lb |
| Hub Type | Sprung Mono-Drive |
| Flywheel Included | Chromoly XACT Streetlite |
| Engine Application | 2.6L Twin Turbo RB26DETT |
| Transmission | 6-speed manual |
What's Included
- 1x T2SS-N04 Mod-Twin 225 XT Sprung Street clutch disc set and pressure plate assembly
- 1x Chromoly XACT Streetlite flywheel
- Clutch hardware, release bearing, pilot bearing, and alignment tool
About ACT
Advanced Clutch Technology (ACT) builds its Mod-Twin lineup, including the T2SS-N04, around modular twin-disc assemblies that let R34 GT-R owners select the clamp load matched to their power level. ACT's heat-treating process is designed to keep the T2SS-N04 clamp force stable through extended high-load use on the street or at the track.
Related Parts
- ACT 07-11 Mazdaspeed 3 Performance Street Sprung Disc
- ACT 2006 Mazda 6 Perf Street Sprung Disc
FAQ
What is the T2SS-N04?The T2SS-N04 is an ACT Mod-Twin 225 XT Sprung Street clutch kit for the 1999-2002 Nissan Skyline GT-R (R34), using a higher clamp load than the HD version and rated up to 875 ft-lb of torque capacity.
What is the difference between the T2SS-N04 and the T1SS-N04?The T2SS-N04 uses ACT's Extreme clamp load setting, which provides higher holding capacity than the T1SS-N04's HD clamp load, while both share the same 225mm Mod-Twin sprung disc design and flywheel.
Does the T2SS-N04 include a flywheel?Yes, the T2SS-N04 kit includes a chromoly XACT Streetlite flywheel matched to the clutch assembly, along with hardware, release bearing, pilot bearing, and alignment tool.
Is the T2SS-N04 street driveable?The T2SS-N04 is part of ACT's Sprung Street line, engineered to keep engagement manageable for street driving despite its higher clamp load and torque capacity.
What torque capacity does the T2SS-N04 support?The T2SS-N04 Mod-Twin design is rated to handle up to 875 ft-lb of torque, suitable for heavily built RB26DETT engines with significant power increases.
Does the T2SS-N04 fit the R34 GT-R 6-speed transmission?Yes, the T2SS-N04 is designed to bolt in to the factory 6-speed manual transmission used in the 1999-2002 Nissan Skyline GT-R (R34).
Why choose the T2SS-N04 over a single-disc clutch?The T2SS-N04 uses two friction discs to double the available friction surface area versus a single-disc clutch, allowing it to handle more torque without the pedal effort increasing as dramatically.
Will the T2SS-N04 fit an R32 or R33 GT-R?No, the T2SS-N04 is engineered specifically for the R34 GT-R's factory bellhousing and flywheel bolt pattern and is not listed as a direct fit for R32 or R33 chassis.
Install Instructions
- Remove the transmission from the vehicle following the factory service procedure for the R34 GT-R.
- Remove the factory flywheel, pressure plate, and clutch disc from the crankshaft flange.
- Install the T2SS-N04 chromoly XACT Streetlite flywheel and torque the mounting bolts to factory specifications.
- Center the T2SS-N04 clutch disc using the supplied alignment tool, then bolt on the pressure plate assembly.
- Install the new pilot bearing and release bearing included with the T2SS-N04 kit.
- Reinstall the transmission, reconnect the hydraulic clutch line, and bleed the clutch system before test driving.
Prop 65 Warning
This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
ACT
ACT (Advanced Clutch Technology) parts are stocked at Black Ops Auto Works. Shop clutch kits, pressure plates, clutch discs, flywheels, release bearings, pilot bearings, and alignment tools for a broad range of import and domestic platforms including Subaru, Mitsubishi, Honda, Mazda, BMW, Ford, Audi, Volkswagen, and Nissan. Every product is filterable by year, make, model, trim, and engine so the correct clutch ships the first time. Black Ops Auto Works carries 555 ACT SKUs across clutch kits, discs, flywheels, and drivetrain hardware categories. What This Brand Covers ACT is a US manufacturer of performance clutch systems built for street, strip, and track use. The lineup ranges from HD Performance Street clutches designed for daily driven cars to XT and race sprung and rigid disc clutch kits built for serious horsepower and repeated abuse. Product Range ACT clutch kits, individual pressure plates and discs, flywheels, release and pilot bearings, and clutch alignment tools cove...
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