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 Aug 1 - Aug 6

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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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4.5 ★★★★★
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LH
Whiting, US
★★★★★ 5
Durable, Perfect Size, and Glows
Color: A) 2-Pack (2.5" Balls)
I bought these for my 23 pound Bojack (Boston Terrier/Jack Russel) mix and he absolutely loves them. He’s an aggressive chewer that has destroyed Kong toys. This ball has just enough flex or give in it that he can’t tear it apart as it compresses in on itself. After about 6 months it started to wear down and tear a bit by the hole so I just tossed it and gave him the other one. I’ll be buying more of these as they wear out over time.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 14, 2026
R
Verified Purchase
R. C.
Dallas, US
★★★★★ 5
A Must for Nighttime Fetch!!
Color: A) 2-Pack (2.5" Balls)
These are an absolute Must!! We have an ESS who is nearly 2yo and destroys Every toy he has. For some reason, he doesn't try to annihilate these glow balls. If he chomps on them, it's just for a moment while he is bringing it back to you. Has just a little weight to them so it goes far enough when thrown and a nice bounce when we have to play in the house, due to weather. Wish the bright 'glow' held a little longer but stays dim for quite some time and overall, just Awesome! Also purchased the 'chuck it' brand and sent them back because these were so much better. Will be buying more, if ever needed, but haven't had to because they are So Durable.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 12, 2026
L
Verified Purchase
Lance M. Shaw
Cuba, US
★★★★★ 5
Awesome quality glow balls
Color: I) 8-Pack (2.5" Balls)
I have bought every glow ball on amazon many times over for my german shepherds. My longest lasting balls have been the chuck-it, they seem to glow longer and not get destroyed but are expensive. These glow balls are our new favorite and not only because of the low price. They hold a good glow longer are heavy duty and fit the chuck-it thrower perfectly. I am stocking up on these. Shipping was also next day so it's 100% buy on these.
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Reviewed in the United States on February 8, 2026
C
Verified Purchase
Charlow
Houston, US
★★★★★ 3
Glow in the Dark Balls
Color: 2-Pack (3" Balls)
These balls are ok, not great. The reason they didn’t receive 5 stars is because they are hard/stiff, harder to throw & heavier than the the “Chuck It” glow in the dark balls. They did not hold up to heavy chewers as well as the aforementioned balls.
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Reviewed in the United States on May 15, 2026
A
Verified Purchase
Alicia
New York, US
★★★★★ 5
Bulky
I was a little disappointed in how bulky these were and seemed hard to get on. If you can get past this they do seem to work good. Hands do seem softer and a bit healthier.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 8, 2024

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