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SPEC Spec 15-19 BMW M2/13-19 BMW M3 S55/M4 SS-Trim Twin Disc Clutch Kit
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Spec 15-19 BMW M2/13-19 BMW M3 S55/M4 SS-Trim Twin Disc Clutch Kit

SPEC
SPECSB55SST-8.5
Clutch Kits - Multi
Out of stock
$ 1,899.00 $ 1,709.10

SKU: CSB55SST-8.5

Spec 15-19 BMW M2/13-19 BMW M3 S55/M4 SS-Trim Twin Disc Clutch Kit

The SPEC SS-Trim Twin Disc Clutch Kit upgrades power transfer in 2015-2019 BMW M2 and 2013-2019 BMW M3 S55/M4 models. Twin disc setup manages up to 925 ft/lbs daily torque and 1125 ft/lbs peak for tuned engines. Drivers gain consistent shifts and heat resistance during aggressive use.

Key Features

  • Twin Disc Design: Transfers higher torque loads with progressive engagement reducing driveline shock compared to single disc systems
  • SS-Trim Components: Stainless steel backing plate and hardware withstand repeated heat cycles extending service life
  • Performance Friction Discs: Cerametallic materials hold grip from low to redline RPM without slip or chatter
  • Sport Flywheel: Reduces mass by 20 percent over OEM for quicker revs and faster throttle response
  • Full Bolt-On Kit: Contains pressure plate discs flywheel throwout bearing pilot bearing alignment tool and ARP fasteners

Product Notes

  • Designed for modified S55 engines producing over stock 425 ft/lbs
  • Follow 500-mile break-in avoiding full throttle launches or slipping
  • MPN SB55SST-8.5 fits rear-wheel drive applications only

Installation Notes

  • Professional installation recommended.
  • Torque pressure plate bolts to SPEC specs using OEM flywheel resurfacing if reusing
  • Requires compatible OEM or aftermarket throwout bearing sleeve

This Part Fits

Year Make Model Submodel
2015 - 2019 BMW M2 Competition
2013 - 2019 BMW M3 S55
2013 - 2019 BMW M4 Base / Competition / CS / GTS

Why Choose SPEC?

  • 20+ years building clutches for BMW S55 platforms
  • USA-made with dyno-proven materials and tolerances
  • Field tested in racing and high-hp street cars

Frequently Asked Questions

  • Q: Does this fit 2017 BMW M3 with Competition Package?
    A: Yes covers all 2013-2019 S55 M3 models including Base Competition and CS variants
  • Q: What friction materials are used?
    A: Segment cerametallic facings on primary disc full facing on secondary for balanced grip and wear
  • Q: What warranty coverage?
    A: 12-month limited warranty from purchase date covers manufacturing defects with proper installation

Shipping & Handling

  • Method: UPS Ground
  • Availability: In stock - ships same or next business day
  • Packaging: 18 x 14 x 10 inch reinforced box
  • Weight: 28 lbs

Request For Information

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