Performance Auto Parts & Car Accessories | Unbeatable Prices Your One Stop Shop For Performance Auto Parts

Choose Your Car 
ACT Xtreme Duty Performance Street Disc Clutch Kit | 2004-2021 Subaru STI (SB10-XTSS) ACT Xtreme Performance Disc Clutch Kit (Subaru STi 2004-2011) SB10-XTSS - Modern Automotive Performance

MAP lowest price guarantee

ACT Clutch Kits & Flywheels

ACT Xtreme Duty Performance Street Disc Clutch Kit | 2004-2021 Subaru STI

PART# ACT SB10-XTSS
Find a lower price!?

( We'll refund the difference! )

Give us a call to get the best prices and parts for your build. Or, just call us with a cool racing story...either way we're here.

Email - sales@maperformance.com

Phone 1-888-627-3736



$ 666.00   $ 854.00
Instant Savings of 22% ($ 188.00)

Ships for FREE by , when ordered within hrs and mins

Looking for a flywheel too? Add one below!

  Click here to make a selection!
ACT Street-Lite Flywheel | 2004-2021 Subaru STI (600235)
ACT Street-Lite Flywheel | 2004-2021 Subaru STI (600235) 
  $357.00
ACT XACT Prolite Flywheel | 2004-2021 Subaru STI (600240)
ACT XACT Prolite Flywheel | 2004-2021 Subaru STI (600240) 
  $384.00
Default Title ACT Xtreme Duty Performance Street Disc Clutch Kit | 2004-2021 Subaru STI (SB10-XTSS) - ACT SB10-XTSS $ 666.00
Fits Your
MAP Loyalty: Earn $ 13.32 Toward Next Purchase!

2004-2021 Subaru WRX STI ACT Xtreme Duty Performance Street Disc Clutch Kit

SB10-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 higher copper content for better heat transfer and steel-backed lining for greater burst strength and durability. These discs feature a reduced marcel for faster shift action to complement ACT pressure plates. Quiet operation with increased strength and reliability.

Monoloc is a one-piece, direct replacement or upgrade to the standard, two-piece wedge collar and wire ring featured in pull-type clutches. The spring tension of the segmented retaining ring is carefully calculated and tested for optimal performance. It provides uniform loading on the bearing and pressure plate to assure proper alignment, regardless of driver influence or vehicle modifications. Monoloc's hardened chrome-moly steel construction will provide years of service.

Features

  • Torque Capacity (ft/lbs.): 590
  • Moderate to heavy pedal effort, smooth positive engagement, OE to mild gear rattle, confidence during hard shifts
  • Longer friction life, extended by ACT's exclusive diaphragm design, dramatic improvement in release mechanism life
  • Carefully engineered, precisely assembled, accurately balanced, with premium organic friction materials for heat tolerance and reduced fade, major improvement in release mechanism
  • 100% clamp load tested and dynamically computer balanced for smooth high RPM reliability, includes ACT's patented Monoloc
  • Recommended for street and race use

Benefits

  • Increase clamp load, reduce deflection and maximize clutch life
  • Better heat transfer and steel-backed lining for greater burst strength and durability
  • Quiet operation with increased strength and reliability

Applications

  • 2004-2020 Subaru WRX STI
  • 2007-2009 Subaru Legacy GT spec.B
    *6 speed applications only - Must use ACT or factory flywheel for the 2004 and newer WRX STi

What's in the box?

  • 3000503 - Perf Street Sprung Disc
  • AT90 - Alignment Tool
  • PB1004 - Pilot Bearing
  • RB601 - Release Bearing
  • SB019X - P/PL-M Xtreme Pressure Plate
  • ACT's patented Monoloc
  • Installation Instructions!

2004-2021 Subaru WRX STI ACT Xtreme Duty Performance Street Disc Clutch Kit

SB10-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 higher copper content for better heat transfer and steel-backed lining for greater burst strength and durability. These discs feature a reduced marcel for faster shift action to complement ACT pressure plates. Quiet operation with increased strength and reliability.

Monoloc is a one-piece, direct replacement or upgrade to the standard, two-piece wedge collar and wire ring featured in pull-type clutches. The spring tension of the segmented retaining ring is carefully calculated and tested for optimal performance. It provides uniform loading on the bearing and pressure plate to assure proper alignment, regardless of driver influence or vehicle modifications. Monoloc's hardened chrome-moly steel construction will provide years of service.

Features

  • Torque Capacity (ft/lbs.): 590
  • Moderate to heavy pedal effort, smooth positive engagement, OE to mild gear rattle, confidence during hard shifts
  • Longer friction life, extended by ACT's exclusive diaphragm design, dramatic improvement in release mechanism life
  • Carefully engineered, precisely assembled, accurately balanced, with premium organic friction materials for heat tolerance and reduced fade, major improvement in release mechanism
  • 100% clamp load tested and dynamically computer balanced for smooth high RPM reliability, includes ACT's patented Monoloc
  • Recommended for street and race use

Benefits

  • Increase clamp load, reduce deflection and maximize clutch life
  • Better heat transfer and steel-backed lining for greater burst strength and durability
  • Quiet operation with increased strength and reliability

Applications

  • 2004-2020 Subaru WRX STI
  • 2007-2009 Subaru Legacy GT spec.B
    *6 speed applications only - Must use ACT or factory flywheel for the 2004 and newer WRX STi

What's in the box?

  • 3000503 - Perf Street Sprung Disc
  • AT90 - Alignment Tool
  • PB1004 - Pilot Bearing
  • RB601 - Release Bearing
  • SB019X - P/PL-M Xtreme Pressure Plate
  • ACT's patented Monoloc
  • Installation Instructions!

Customer Reviews

Based on 8 reviews
100%
(8)
0%
(0)
0%
(0)
0%
(0)
0%
(0)
P
Paul H.
Oh daddy

By far the best purchase I've made so far to enhance the overall performance and driving and handling of my car. Would recommend this definitely as a package buy. Im not at all unhappy with my purchase. Hope you find this review helpful

C
Christopher Roth
Amazing clutch

Excellent clutch. Boy does she gran and go. I have fidanza flywheel also.

A
Alexander G.
Perfect

Replaced an Exedy Stage 1 clutch and flywheel with this one (and paired this clutch with an ACT StreetLite Flywheel) - absolutely awesome set up. Softer pedal than the Exedy gave me, with much more clamping force. Probably the best organic single-disk clutch on the market especially for the price.

A
Armando Billalba
Awesome

I love it so far. Great product

A
Alex B.
Better than I Expected!

Purchased for my v8 six speed. Researched a ton before purchasing and don’t regret it. Clutch pedal is not as stiff as everyone says it is. Higher engaging point and super grabby compared to stock and stage 1 (in my opinion). Definitely a Clutch Kit to consider if you don’t want to spend $$$$.

MAP Limited Lifetime Warranty

1.) All MAPerformance in-house fabricated parts include a Limited Lifetime Warranty for the Original Purchaser. This warranty only applies to the original purchaser and is non-transferrable. If the product fails it would need to be determined by MAPerformance that it is due to manufacturing defects in materials or workmanship.

2.) This does not cover normal wear and tear. Improper use, modification, or abuse voids this warranty. MAPerformance will not be held responsible for additional costs due to the failure of a product (cost of sale, towing, labor, etc.). Warranty claims must be submitted to MAPerformance for review.

3.) You must create a support ticket to acquire your return authorization number prior to returning the product.

4.) Warranty claims will not be honored if the product was not purchased through an approved dealer.

For warranty evaluation please create a support ticket via this form Click Here For Customer Service.

Lead: Variants: null

We use cookies to offer a better browsing experience, analyze site traffic, personalize content, and serve targeted advertisements. Please review our privacy policy & cookies information page.  If you continue you consent to our privacy policy & use of cookies.Accept

Hello!

Unfortunately, due to vendor restrictions we are unable to sell this brand within Australia or the UK. If you have any questions, feel like you received this message in error or would like suggestions on other brands please contact us here.

Hello!

Unfortunately, due to vendor restrictions we are unable to sell this brand within Australia. If you have any questions, feel like you received this message in error or would like suggestions on other brands please contact us here.

Hello!

Unfortunately, due to vendor restrictions we are unable to sell this brand within your country. If you have any questions, feel like you received this message in error or would like suggestions on other brands please contact us here.

Hello!

Unfortunately, due to vendor restrictions we are unable to sell this product or brand within California. If you have any questions, feel like you received this message in error or would like suggestions on other brands please contact us Here or call 1-888-627-3736 to speak to one of our experts.

Hello!

Unfortunately, we are not able to ship this item outside of the United States.
If you have any questions please contact us at: 1-888-627-3736 or Email Us Here.