SKU: 51791206647

T1SS-S01 - Mod-Twin 225 HD Sprung Street

Sale price$764.55 Regular price$849.50
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Ships within 48 hours · Estimated delivery Jul 27 - Aug 1

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Description

T1SS-S01 - Mod-Twin 225 HD Sprung StreetSpecifications: Item Description: Mod Twin 225 HD Sprung Street Product Weight: 27. 4 lbs. Torque Capacity: 625 ft lbs. Torque Capacity Over OE: 99% Disc Material: Organic Clutch Disc Diameter: 8. 8 inches 225 millimeters Input Shaft Diameter: 1 inch Pressure Plate Type: Heavy Duty Warranty: 12 Months SFI: 1. 2 Description: The T1SS S01 Mod Twin 225 HD Sprung Street Kit is specifically designed for high powered AWD street cars, offering a blend of

Specifications:

  • Item Description: Mod-Twin 225 HD Sprung Street
  • Product Weight: 27.4 lbs.
  • Torque Capacity: 625 ft/lbs.
  • Torque Capacity Over OE: 99%
  • Disc Material: Organic
  • Clutch Disc Diameter: 8.8 inches / 225 millimeters
  • Input Shaft Diameter: 1 inch
  • Pressure Plate Type: Heavy Duty
  • Warranty: 12 Months
  • SFI: 1.2

Description:

The T1SS-S01 Mod-Twin 225 HD Sprung Street Kit is specifically designed for high-powered AWD street cars, offering a blend of uncompromised pedal feel, durability, engagement quality, and high torque capacity. This kit achieves its performance through a modular design that combines twice the organic friction surfaces with an ultra-durable spring center Mono-Drive hub.

Each diaphragm spring undergoes an exclusive four-stage heat-treating process to ensure a consistent light pedal feel. The steel-backed friction plates, featuring high-quality organic friction materials, deliver a stable friction coefficient, good heat capacity, and long clutch life. These friction plates uniformly transfer torque to the Mono-Drive sprung hub assembly, which extends input shaft life and reduces driveline shock from torsional vibration.

Included in this kit are a CNC-machined and dynamically balanced flywheel, pressure plate cover, diaphragm spring, face, puck-style ceramic friction plates, sprung Mono-Drive hub assembly, floater, patented Monoloc Collar, release bearing, alignment tool, and pilot bearing (if needed). The Mod-Twin clutches are fully rebuildable, and most components can be ordered separately.

Features:

  • Feel: Soft progressive engagement, light pedal effort, smooth shifting with OE to mild transmission gear noise.
  • Life: Forged Aluminum Cover, Mono-drive hub, exclusive diaphragm, premium friction materials, and hardened wear points ensure long life and performance under demanding conditions.
  • Quality: Delivers maximum performance and high heat tolerance through robust design, strategic features, choice materials, and close tolerances.
  • Recommended Use: Street or Street/Strip.
  • ACT Difference: Utilizes tactical engineering to address common tradeoffs found in twin-disc clutches, resulting in an ultra-durable, customer-serviceable, long-lasting clutch with very high torque capacity. All clutches are 100% clamp load tested, balanced, and SFI certified.

Vehicle Fitment:

  • Application: Engine
    • Various Subaru models from 2005 to 2023 with different engine specifications.

PROP 65 WARNING: This product contains chemicals including carbon black, glass wool fibers, silica (in clutch discs), chromium, and nickel, which are known to the State of California to cause cancer or birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 51791206647

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Katherine Shope
Battle Creek, US
★★★★★ 5
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Color: White, Size: Medium
Looks great, fits well and comfortable.
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Reviewed in the United States on May 18, 2026
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Linda Swanson
New York, US
★★★★★ 4
Fine little tight around collar
Color: White, Size: X-Large
Little tight around collar
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Reviewed in the United States on April 20, 2026
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Reginald Carroll
Boise, US
★★★★★ 5
Great
Color: Light Blue, Size: XX-Large
Great dress shirt !!
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Reviewed in the United States on April 28, 2026
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Michael Kulp
Louisville, US
★★★★★ 5
Highly Recommended Dress Shirt
Fit Type: Regular Fit, Color: White, Size: Medium
Honestly, I Love It. Fits Great, Neck Isn't Too Tight Like Most Shirts, And It's Comfortable. It Is 100% Cotton, So Dont Forget To Iron It Before Wearing It. High Quality Dress Shirt. Highly Recommended.
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Reviewed in the United States on October 21, 2025
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Jim
Boise, US
★★★★★ 5
Surprisingly good shirt for the price
Fit Type: Regular Fit, Color: White, Size: XX-Large
I’m generally pleased with my purchase. I got a 2XL because the website it would fit my neck. Around the waist it fit similar to Amazon Essentials work shirts (like mechanics use which I find comfortable). It was snug around the waist when sitting, but I can’t complain because I have a belly. I did find the neck snug when buttoning the top button so it means the neck is 18 or 18.5 and I wear a 19/19.5 to have 1-2 fingers space in the collar. The shirt is surprisingly thick like Amazon’s work shirts, much thicker than other dress shirts from another brand. And I am pleased that this shirt has button holes like other Amazon shirts does, all vertical button holes except the last one at the bottom which is horizontal. That feature keeps the shirt from unbuttoning itself during daily movement at the office. A very nice feature! I was a little disappointed in how it was packaged however but I have to press and wash it anyway.
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Reviewed in the United States on February 24, 2023

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