The Clutch Masters 04-09 STi FX400 8 Puck Clutch Kit is designed for the verified vehicle applications listed below. Match manufacturer part number 15017-HDCL, complete year, make, model, application, engine, transmission, input-shaft spline, flywheel requirement, clutch stage, disc type, and every application note before ordering.

Key Features

• FX400 Pressure Plate: Provides 30-40% more clamping force than stock to secure 450+ ft-lbs torque without slippage under load.
• Complete Kit Contents: Pressure plate disc throwout bearing pilot bearing and alignment tool included for straightforward assembly.
• 4140 Forged Steel Design: Resists wear from aggressive driving and high temperatures in competition environments.
• Direct Bolt-On: Aligns with OEM dimensions for 2004-2017 Subaru STI 6-speed manuals with zero alterations needed.
• Resurface OEM flywheel or add lightweight aluminum flywheel for optimal performance.
• Precision-machined components ensure zero runout and reliable operation.

Fitment

Specifications

What’s Included

One new Clutch Masters product in the exact configuration and quantity identified by manufacturer part number 15017-HDCL. Flywheels, discs, pressure plates, bearings, cylinders, lines, valves, seals, adapters, pilot supports, fasteners, fluid, and tools are included only when expressly stated for this exact part number.

About Clutch Masters

Clutch Masters develops street and competition clutch, flywheel, release, and hydraulic products. Correct selection remains exact-vehicle, exact-drivetrain, exact-interface, exact-power-level, and exact-part-number specific.

Related Clutch Masters Products

• Clutch Masters 00-04 Audi A6/A6 Quattro 2.7L FX400 8-Puck Clutch Kit – 450ft/lbs Torque
• Clutch Masters 01-09 Honda S2000 2.0L/2.2L FX400 6-Puck Clutch Kit
• Clutch Masters 03-06 Honda Accord 2.4L / 04-06 Acura TSX 2.4L FX400 Clutch Kit 6-Puck w/Steel Fly

Browse the Clutch Masters collection for related clutch kits, flywheels, release components, and hydraulics.

Frequently Asked Questions

Will this Clutch Masters part fit my 2004-2014 Subaru Impreza WRX STI?
That application is listed, but confirm the exact part number, engine, transmission, input-shaft spline, flywheel requirement, clutch stage, disc type, and every manufacturer note before ordering.

Should the flywheel be inspected or replaced with a new clutch?
Yes. Inspect the flywheel for heat damage, cracks, runout, and the correct step or friction surface. Resurface or replace it only according to the clutch and flywheel manufacturer’s specifications.

Is a clutch break-in period required?
Follow the current instructions for the exact clutch. Many street friction materials require controlled engagement cycles before full-torque use, while some race systems have different procedures.

Installation Instructions

Follow the current Clutch Masters and factory service instructions for this exact part number. Verify every interface before transmission removal, inspect and measure the flywheel and release system, replace worn seals and bearings, keep friction surfaces clean, use the specified fasteners and torque sequence, bleed hydraulic components, confirm release travel, and complete the required break-in procedure before full-torque use.