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Fitment Information
- Subaru WRX STI Base 2.5L H4 (2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021)
- Subaru WRX STI Launch Edition 2.5L H4 (2015)
- Subaru WRX STI Limited 2.5L H4 (2007, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021)
- Subaru WRX STI S209 2.5L H4 (2019)
- Subaru WRX STI Series.HyperBlue 2.5L H4 (2016)
- Subaru WRX STI Special Edition 2.5L H4 (2010)
- Subaru WRX STI Sport 2.5L H4 (2017, 2018, 2019, 2020, 2021)
- Subaru WRX STI Sport-tech 2.5L H4 (2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021)
- Subaru WRX STI Tsurugi Edition 2.5L H4 (2014)
- Subaru WRX STI Type RA 2.5L H4 (2018)
- Subaru WRX STI 2.5L H4 (2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2018, 2019, 2020)
Specs & Features
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Mod-Twin 225 Heavy Duty Sprung Race - T1R-S05
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Torque Capacity (ft/lbs.): 895 - Torque Capacity is measured at the Engine/Crank
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Torque Capacity Over OE: 152%
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Disc Material: Ceramic
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Clutch Disc Diameter (Inches): 8.8
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Clutch Disc Diameter (Millimeters): 225
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Input Shaft Diameter (inches): 1
- Pressure Plate Type: Heavy Duty
- SFI: 1.2
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Mod-Twin 225 HD Sprung Street - T1S-S05
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Torque Capacity (ft/lbs.): 700 - Torque Capacity is measured at the Engine/Crank
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Torque Capacity Over OE: 97%
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Disc Material: Organic
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Clutch Disc Diameter (Inches): 8.8
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Clutch Disc Diameter (Millimeters): 225
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Input Shaft Diameter (inches): 1
- Pressure Plate Type: Heavy Duty
- SFI: 1.2
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Mod-Twin 225 XT Sprung Race - T2R-S05
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Torque Capacity (ft/lbs.): 1120 - Torque Capacity is measured at the Engine/Crank
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Torque Capacity Over OE: 214%
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Disc Material: Ceramic
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Clutch Disc Diameter (Inches): 8.8
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Clutch Disc Diameter (Millimeters): 225
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Input Shaft Diameter (inches): 1
- Pressure Plate Type: Xtreme
- SFI: 1.2
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Mod-Twin 225 XT Sprung Street - T3R-S05
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Torque Capacity (ft/lbs.): 875 - Torque Capacity is measured at the Engine/Crank
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Torque Capacity Over OE: 146%
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Disc Material: Organic
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Clutch Disc Diameter (Inches): 8.8
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Clutch Disc Diameter (Millimeters): 225
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Input Shaft Diameter (inches): 1
- Pressure Plate Type: Xtreme
- SFI: 1.2
- Mod-Twin 225 Maxx Xtreme Race - T3R-S05
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Torque Capacity (ft/lbs.): 1340 - Torque Capacity is measured at the Engine/Crank
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Torque Capacity Over OE: 275%
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Disc Material: Ceramic
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Clutch Disc Diameter (Inches): 8.8
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Clutch Disc Diameter (Millimeters): 225
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Input Shaft Diameter (inches): 1
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Pressure Plate Type: Maxx Xtreme
- SFI: 1.2
Product Description
Elevate your all-wheel-drive (AWD) vehicle's performance with the ACT Mod-Twin 225 Clutch Kit, designed for aggressive launches and seamless shifting. Combining twice the ceramic friction surfaces with a durable Mono-Drive sprung hub assembly, this kit ensures optimal torque transfer and reduced driveline shock, providing unparalleled control on both the track and the street. Each component undergoes an exclusive four-stage heat treating process, guaranteeing a consistent pedal feel, while the puck-style friction plates offer exceptional friction coefficient and heat capacity. With CNC-machined precision, installation is straightforward, allowing you to spend less time in the garage and more time enjoying the thrill of the road. Trust in ACT to deliver unmatched performance and reliability, and experience a new standard of driving excellence with the Mod-Twin 225 Clutch Kit.
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Feel
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Mod-Twin 225 Heavy Duty Sprung Race - T1R-S05 / XT Sprung Race - T2R-S05
- Experience a predictable and aggressive engagement with light pedal effort, allowing for quick shifting. While there may be some start-off judder with OE to mild transmission gear noise, overall performance is optimized.
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Mod-Twin 225 HD Sprung Street - T1S-S05 / XT Sprung Street - T3R-S05
- Enjoy a soft, progressive engagement with light pedal effort, ensuring smooth shifting while minimizing transmission gear noise from OE to mild levels.
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Mod-Twin 225 Maxx Xtreme Race - T3R-S05
- Experience predictable aggressive engagement with increased pedal effort for smooth shifting. Note: Possible start-off judder with OE to mild transmission gear noise.
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Mod-Twin 225 Heavy Duty Sprung Race - T1R-S05 / XT Sprung Race - T2R-S05
- Life - Built with a forged aluminum cover, mono-drive hub, exclusive diaphragm, premium friction materials, and hardened wear points, ensuring durability and longevity even under the most demanding conditions.
- Quality - Designed to deliver maximum performance and high heat tolerance through a robust design, strategic features, choice materials, and close tolerances, guaranteeing reliability in every race.
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Recommended Use
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Mod-Twin 225 Heavy Duty Sprung Race - T1R-S05 / XT Sprung Race - T2R-S05 / Maxx Xtreme Race - T3R-S05
- Ideal for drag, road, or rally racing, providing exceptional performance across various racing disciplines.
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HD Sprung Street - T1S-S05 / XT Sprung Street - T3R-S05
- Perfect for street driving or street/strip applications, offering versatility for various driving scenarios.
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Mod-Twin 225 Heavy Duty Sprung Race - T1R-S05 / XT Sprung Race - T2R-S05 / Maxx Xtreme Race - T3R-S05
- ACT Difference - ACT applies tactical engineering to the MOD-TWIN, offering unique solutions to common tradeoffs found on twin disc clutches. The result is an ultra-durable, customer serviceable, long-lasting clutch with very high torque capacity. All clutches are 100% clamp load tested, balanced, and SFI certified.
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.More in this category
ACT Mod-Twin Clutch Kit
Subaru WRX STi Clutch Kit
Subaru WRX STi Parts
Reviews on this product
Ordering from Redline360
Redline360 is an Authorized Dealer so we only sell authentic and genuine parts and accessories.
Order updates, tracking and info
Our goal is your complete satisfaction. Upon ordering, you will receive an email confirmation of your order along with your invoice. You will be able to log into our website 24/7 to check on your order at any time. Your order is processed Monday through Friday from 8am to 6pm PST as soon as it is placed. Once your order ships, we will email you a tracking number so you can track your package.
Protect your purchase
Redline360 offers our customers piece of mind! We have partned with Extend to offer you Extend Product Protection and Extend Shipping Protection. Read about each protection that Extend offers to Redline360 customers!
Multiple distribution points ready to serve you!
We ship from multiple locations around the United States so you receive your part as quick as possible. Not every warehouse stocks all the same parts, so the closest warehouse to you that has the part in stock is where your order will ship from. We ship from California, Nevada, Indiana, Michigan, Florida, Texas and Pennsylvania.
Secure Ordering
We take security seriously! We are never exposed to your credit card information, and it's never stored. Credit card transactions go through the credit card processor directly. We also offer various other payment methods such as PayPal, Affirm Financing (Pay over time), Amazon Pay, Apple Pay and more!
Any non CARB compliant items can not ship California. We will notify you if we have to cancel your order.
Some products may be subject to local rules, laws and regulations in certain areas. Always check your local laws to determine legal restrictions. We are not responsible if you buy a product that is not legal in your area.
For items that have free shipping, free shipping only applies to the lower 48 states.
Questions? Contact us.
Actual item may vary from picture
Redline360 is an Authorized Dealer so we only sell authentic and genuine parts and accessories.
Order updates, tracking and info
Our goal is your complete satisfaction. Upon ordering, you will receive an email confirmation of your order along with your invoice. You will be able to log into our website 24/7 to check on your order at any time. Your order is processed Monday through Friday from 8am to 6pm PST as soon as it is placed. Once your order ships, we will email you a tracking number so you can track your package.
Protect your purchase
Redline360 offers our customers piece of mind! We have partned with Extend to offer you Extend Product Protection and Extend Shipping Protection. Read about each protection that Extend offers to Redline360 customers!
Multiple distribution points ready to serve you!
We ship from multiple locations around the United States so you receive your part as quick as possible. Not every warehouse stocks all the same parts, so the closest warehouse to you that has the part in stock is where your order will ship from. We ship from California, Nevada, Indiana, Michigan, Florida, Texas and Pennsylvania.
Secure Ordering
We take security seriously! We are never exposed to your credit card information, and it's never stored. Credit card transactions go through the credit card processor directly. We also offer various other payment methods such as PayPal, Affirm Financing (Pay over time), Amazon Pay, Apple Pay and more!
Any non CARB compliant items can not ship California. We will notify you if we have to cancel your order.
Some products may be subject to local rules, laws and regulations in certain areas. Always check your local laws to determine legal restrictions. We are not responsible if you buy a product that is not legal in your area.
For items that have free shipping, free shipping only applies to the lower 48 states.
Questions? Contact us.
Actual item may vary from picture