Clutch Masters 850 Strapped Series Twin Disc Clutch Kit w/ Steel Flywheel Subaru STI 2004-2021 | 15017-TDFS-SHV

Take your high-horsepower Subaru STI to the next level with the Clutch Masters FX850 Strapped Twin Disc Clutch Kit. Engineered for serious street and track performance, the FX850 Strapped delivers exceptional holding power while offering smoother engagement and improved drivability over traditional twin disc clutch systems. Designed to bridge the gap between a street-friendly clutch and a dedicated race setup, this kit is perfect for enthusiasts who demand maximum performance without sacrificing everyday usability.

Unlike the original FX850 Twin Disc, the FX850 Strapped utilizes innovative drive straps that isolate the pressure plate and mid-plate from the clutch discs. This significantly reduces clutch chatter and provides smoother engagement, making stop-and-go traffic and daily driving much more manageable while still delivering the holding capacity needed for high-boost and high-horsepower applications.

The clutch kit features one sprung ceramic disc and one rigid ceramic disc manufactured from premium ceramic friction material to maximize torque capacity, durability, and consistent performance under extreme conditions. A billet aluminum pressure plate with a Type III hard anodized finish provides exceptional strength, superior clamping force, and minimal flex for consistent pedal feel and reliable power transfer.

This complete kit also includes a precision-machined 1045 billet steel flywheel with a black oxide finish for corrosion resistance and a hydraulic release bearing with push-type conversion, making installation straightforward for compatible Subaru STI models.

Key Features

• FX850 Strapped Twin Disc Clutch Kit
• Designed for high-horsepower street and track vehicles
• Drive strap technology reduces clutch chatter and improves engagement
• One sprung ceramic disc and one rigid ceramic disc
• Premium ceramic friction material for maximum holding power
• Billet aluminum pressure plate with Type III hard anodized finish
• Approximately 25% stronger than comparable cast clutch covers
• Minimal cover flex for consistent clutch engagement
• Superior clamping force for high-performance applications
• Fully compatible with existing Clutch Masters FX850 Twin Disc applications
• Upgradeable from current FX850 Twin Disc kits
• Steel flywheel included
• Hydraulic release bearing included
• Push-type conversion included

Steel Flywheel Features

• Precision machined from 1045 billet steel
• Black oxide coating for corrosion resistance
• Designed for strength, durability, and consistent performance

Performance Benefits

• Smoother clutch engagement for improved street driving
• Virtually eliminates the chatter common with traditional twin disc clutches
• Exceptional torque holding capacity for high-horsepower builds
• Improved pedal feel and consistent engagement
• Excellent heat resistance for aggressive driving and racing
• Ideal for street, drag racing, road racing, and track day applications
• Built to withstand repeated hard launches and extreme driving conditions

Vehicle Fitment

• Subaru WRX STI (2004-2021)
• Fits all current Clutch Masters FX850 Twin Disc applications
• Direct upgrade from existing FX850 Twin Disc kits

Why Choose the Clutch Masters FX850 Strapped?

The Clutch Masters FX850 Strapped Twin Disc is the perfect solution for enthusiasts building powerful Subaru STI models that require race-ready holding capacity with improved street manners. By combining innovative drive strap technology, premium ceramic friction materials, a billet aluminum pressure plate, and a precision-machined steel flywheel, this clutch kit delivers outstanding durability, smooth engagement, and confidence-inspiring performance whether you're cruising the street or chasing lap times.