Clutch Masters FX400 Clutch Kits for a 2004-2014 Subaru Impreza, 2006-2009 Subaru Legacy GT spec.B and 2015-2021 Subaru WRX STI.
Built to OEM specifications to work with factory OEM flywheel or aftermarket flywheel built to OEM specifications.
The FX400 System uses the Power Plus I Pressure Plate with a custom, extremely durable, Sprung Ceramic disc. This is the ultimate extreme duty street and/or road/drag racing system. It is available in a 4 or 6 wing (paddle) configuration, with the 4-wing being the more aggressive setup (please specify which type you prefer). The sprung hub design allows for moderate dampening in high-torque applications, rendering it much more streetable than solid or rigid designs. This disc is designed for long life, outstanding holding capacity, and rapid heat dissipation.
Warning: Due to the solid (no Marcel) friction rivet design, the FX400 disc engages very quickly and may chatter slightly in first and reverse. To help alleviate this problem, we only use premium ceramic friction material.
All stages come as a complete kit including disc, pressure plate, throwout bearing (when applicable), pilot bearing (when applicable), and alignment tool. (Individual components available upon request)

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| CLUTCH KIT PART# GUIDE: #####-HDTZ-A | |
| Pressure Plate Codes: | |
| SD - Custom Single Disc (725 or 850) DD - Double diaphragm pressure plate HD - Heavy duty pressure plate |
HR - High rev pressure plate TD - Twin Disc |
| Disc Codes: | |
| 00 - Sprung steel-backed organic disc B4 - 4-puck rigid ceramic disc. B5 - 5-puck rigid ceramic disc. B6 - 6-puck rigid ceramic disc. BL - Rigid full face ceramic disc. 0C - Sprung Organic/Ceramic disc. C4 - 4-puck ceramic sprung disc. C6 - 6-puck ceramic sprung disc. CL - Sprung full face ceramic disc. CF - Sprung ceramic/Fiber Tough disc. CK - Sprung full face Kevlar/ceramic disc. CT - Sprung segmented Kevlar/ceramic disc. 0F - Sprung Organic/Fiber Tough disc. |
FF - Sprung Fiber Tough disc. |
| Foot Notes: | |
| A - Aluminum flywheel included. S - Steel flywheel included. T - Fits Tremec transmission only. H - Hydraulic slave cylinder included. K - Upgrade kit including flywheel. R - Rigid disc. D - Dampened disc. C - Custom kit. |
P - Clutch/flywheel package deal. M - Modular clutch/flywheel kit. V - Push type conversion. W - Pull type conversion. Y - 6 bolt patern. Z - 8 bolt patern. 1-7 - Unique flywheel identifier. |
| FLYWHEEL PART# GUIDE: FW-###-AL | |
| AL - Aluminum SF - Steele |
FW - Flywheel |
| Years | Make | Model | Trim | ||
|---|---|---|---|---|---|
| 2004 - 2014 | Subaru | Impreza | WRX STI | ||
| 2007 - 2007 | Subaru | Impreza | WRX STI Limited | ||
| 2010 - 2010 | Subaru | Impreza | WRX STI Special Edition | ||
| 2011 - 2014 | Subaru | Impreza | WRX STI Limited | ||
| 2006 - 2009 | Subaru | Legacy | GT spec.B | ||
| 2015 - 2021 | Subaru | WRX STI | Limited | ||
| 2015 - 2015 | Subaru | WRX STI | Launch Edition | ||
| 2015 - 2021 | Subaru | WRX STI | Base | ||
| 2016 - 2016 | Subaru | WRX STI | Series.HyperBlue | ||
| 2018 - 2018 | Subaru | WRX STI | Type RA | ||
| 2019 - 2019 | Subaru | WRX STI | S209 |
IN STOCK XCLUTCH XKSU24001-1AXXCLUTCH Clutch - Stage 1 Extra HD Sprung Organic XClutch 15-21 Subaru WRX STi Base 2.5L Stage 1 Extra HD Sprung Organic Clutch Kit $712.07
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$1,128.60
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IN STOCK - LOW XCLUTCH KSU23008XCLUTCH Clutch - ClutchPro Organic XClutch 00-03 Subaru Legacy/Outback 2.5L Standard Replacement Organic ClutchPro Clutch Kit $292.06
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IN STOCK Exedy 15801Exedy Stage 1 Clutch Kits Exedy 2005-2006 Saab 9-2X 2.5I H4 Stage 1 Organic Clutch $241.15
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IN STOCK ACT SB11-XTSSACT XT/Perf Street Clutch Kits ACT 2010 Subaru Impreza XT/Perf Street Sprung Clutch Kit $1,128.60
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IN STOCK Clutch Masters 15017-HD0FClutch Masters FX250 Clutch Kits Clutch Masters 04-11 Subaru WRX Sti 2.5L Eng. 6-Spd FX250 Clutch Kit $722.50
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IN STOCK ACT SB11-HDSSACT HD/Perf Street Clutch Kits ACT 2006 Subaru Impreza HD/Perf Street Sprung Clutch Kit (5 SPD) $1,083.60
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IN STOCK - LOW Torque Solution TS-SU-006Torque Solution Shifter Cable Bushings Torque Solution Shifter Bushings: Subaru Sti & Legacy $49.25
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IN STOCK Clutch Masters FW-021-SFClutch Masters Steel Flywheels Clutch Masters 06-08 Subaru WRX 2.5L Eng. 5-Spd Steel Flywheel $446.25
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IN STOCK Driveshaft Shop 610166Driveshaft Shop Carbon Import Driveshaft DSS Subaru 2008-2014 WRX STi 1-Piece Carbon Fiber Driveshaft SUSH9-C $1,299.98
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IN STOCK Exedy FM023SBExedy Hyper Multi Clutch Kits Exedy 2004-2014 Subaru Impreza WRX STI H4 Hyper Triple Cerametallic Clutch Rigid Disc Pull Type $3,002.15
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IN STOCK - LOW Torque Solution TS-SU-702Torque Solution Shifter Bushings Torque Solution Shifter Pivot Bushings (Wide): 02-07 Subaru WRX $44.11
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$476.68
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$178.27
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IN STOCK - LOW XCLUTCH XFSU003CLXCLUTCH Flywheel - Chromoly XClutch 13-21 Subaru WRX STi Type RA 2.5L Lightweight Chromoly Flywheel $467.32
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For more information on Clutch Masters part number 15017-HDCL, you can visit the official Clutch Masters website.