ACT Xtreme Clutch Kit w/ Streetlite Flywheel | 2006-2021 Subaru WRX (SB11-XTSS)

ACT Clutch Kits & Flywheels
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$1,120.00 $1,436.00Instant Savings of 22% ($316.00)

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XT Clutch Kit Performance Street Disc(SS) With Streetlite Flywheel

SB11-XTSS kit features an Xtreme pressure plate for the most demanding driver. ACT Xtreme pressure plates use exclusive diaphragm design to increase clamp load, reduce deflection and maximize clutch life. All diaphragms endure a four-stage, heat-treating process for unparalleled performance. ACT pressure plates have precision cover stampings to provide rigidity and consistency. ACT's Performance street discs are the most popular disc purchased. They feature premium organic materials with high copper content for better heat transfer and steel-backed lining for greater burst strength and durability. These discs have reduced marcel for faster shift action to complement ACT pressure plates. Quiet operation with increased strength and reliability.


  • Recommended for street and race use
  • 100% clamp load tested and dynamically computer balanced for smooth high RPM reliability
  • Xtreme pressure plates use exclusive diaphragm design
  • Moderate to heavy pedal effort, smooth engagement, OE to mild gear rattle
  • Faster Shift Action


  • Increases Clamp Load
  • Reduces Deflection
  • Longer friction life, extended by ACT's exclusive diaphragm design


  • Torque Capacity (ft/lbs.): 510
  • Torque Capacity Over OE: 51%


  • 2006-2021 Subaru WRX
  • *240mm upgrade. Must use ACT flywheel (included in kit).
  • 2006-2008 Subaru Forester 2.5XT
  • *240mm upgrade. Must use ACT flywheel (included in kit).
  • 2005-2012 Subaru Legacy GT
  • *240mm upgrade. Must use ACT flywheel (included in kit).
  • 2005-2009 Subaru Outback XT
  • *240mm upgrade. Must use ACT flywheel (included in kit).

Installation Instructions

What's in the box?

  • SB020X P/PL Xtreme pressure plate
  • 3000505 Perf Street Sprung Disc
  • 600890 XACT Flywheel Streetlite
  • RB844 Release Bearing
  • PB1004 Pilot Bearing
  • AT90 Alignment Tool


One (1) Year from Retail Purchase

Customer Reviews

Based on 148 reviews
marcus concepcion
Love it


Michael Copeland
Good Piece of Equipment.

Stock’ish feel but a lot better product that handles what I throw at it well, thus far. 500awhp/379awtq.

Durable ASF I think

I got 10k miles of hard launches and consistent digs on my ACT twin disc and its done but I'm betting on this flywheel. I got the purple OEM hanging in my office. Lol

Brian K
Great flywheel

Great flywheel for you DD that keeps a stock feel and doesn’t break the bank! Highly recommend

Jefferson Vo
Clutch is amazing and so is shipping

I recently bought this clutch for my 2017 wrx and it has been amazing so far. Also the shipping was fast precise and good.