SKU: 44624603179

T1R-S05 - Mod-Twin 225 HD Sprung Race

Sale price$946.80 Regular price$1052.00
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Description

T1R-S05 - Mod-Twin 225 HD Sprung RaceSpecifications: Item Description: Mod Twin 225 HD Sprung Race Product Weight (lbs.): 28. 1 Torque Capacity (ft lbs.): 895 Torque Capacity Over OE: 152% Disc Material: Ceramic Clutch Disc Diameter (Inches): 8. 8 Clutch Disc Diameter (Millimeters): 225 Input Shaft Diameter (inches): 1 Pressure Plate Type: Heavy Duty Warranty: 12 Months (view details) SFI: 1. 2 Description: The T1R S05 Mod Twin 225 HD Sprung Race Kit is designed to facilitate aggressive

Specifications:

  • Item Description: Mod-Twin 225 HD Sprung Race
  • Product Weight (lbs.): 28.1
  • Torque Capacity (ft/lbs.): 895
  • Torque Capacity Over OE: 152%
  • Disc Material: Ceramic
  • Clutch Disc Diameter (Inches): 8.8
  • Clutch Disc Diameter (Millimeters): 225
  • Input Shaft Diameter (inches): 1
  • Pressure Plate Type: Heavy Duty
  • Warranty: 12 Months (view details)
  • SFI: 1.2

Description:

The T1R-S05 Mod-Twin 225 HD Sprung Race Kit is designed to facilitate aggressive launches and smoother shifting in high-powered AWD vehicles. This kit combines twice the ceramic friction surfaces with an ultra-durable Mono-Drive sprung hub assembly in a modular design. Each diaphragm spring undergoes an exclusive four-stage heat-treating process, ensuring a consistent light pedal feel. Puck-style friction plates with high-quality ceramic friction materials deliver a high friction coefficient, superior heat capacity, and long clutch life.

These friction plates uniformly transfer torque to a Mono-Drive sprung hub assembly, which extends input shaft life and reduces driveline shock from torsional vibration. The kit includes 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). Mod-Twin clutches are fully rebuildable, and most components can be ordered separately.

Description Highlights:

  • Feel: Predictable aggressive engagement, light pedal effort, quick shifting, possible start-off judder 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-term performance and survival under demanding conditions
  • Quality: Delivers maximum performance and high heat tolerance through robust design, strategic features, choice materials, and close tolerances
  • Recommended Use: Drag, Road, or Rally Racing
  • ACT Difference: Applying tactical engineering to the MOD-TWIN, ACT presents unique solutions to common trade-offs found on twin-disc clutches, resulting in an ultra-durable, customer-serviceable, long-lasting clutch with very high torque capacity. All are 100% clamp load tested, balanced, and SFI certified

Vehicle Fitment:

  • 2004-2021 Subaru Impreza WRX STI, various models

PROP 65 WARNING: This product can expose you to chemicals including carbon black, glass wool fibers, and 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: 44624603179

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4.3 ★★★★★
Based on 1360 reviews
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Tara
Charlottesville, US
★★★★★ 5
Love it
Size: Queen, Color: White
This is such a nice pillow protector. It is super soft, the zipper works great, it has a decent weight to it, and definitely keeps the pillow cooler. I’m very impressed.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 14, 2026
J
Verified Purchase
Julie Lopp
Boise, US
★★★★★ 5
Great product! I love the feel of these.
Size: Queen, Color: White
“I recently purchased the Serta Power Chill Cooling Pillow Protectors, and they have been a game-changer for my sleep comfort. These pillow protectors have exceeded my expectations in several ways. First and foremost, the cooling technology is fantastic. I tend to sleep hot, especially during the summer months, and these pillow protectors have made a noticeable difference. They keep my pillows cool and comfortable throughout the night, which has led to more restful and uninterrupted sleep. The fit is also excellent. They easily slip over my standard-sized pillows and stay securely in place without any annoying bunching, wrinkles or slipping during the night. And the zipper is amazing. Having no wrinkles in my cover is easier on my hair. What’s great about these protectors is that they not only keep my pillows cool but also protect them from spills, stains, and allergens. It gives me peace of mind knowing that my pillows are safeguarded while I enjoy a cool and refreshing sleep environment. There is no noise when sleeping on this cover, it’s soft. Cleaning is a breeze. They are machine-washable and maintain their cooling properties even after multiple washes. The quality of the materials used is evident. These protectors feel durable and well-made, promising long-lasting use. While they are slightly more expensive than basic pillow protectors, the added cooling benefits and protection they offer are well worth the investment. They’ve made a significant difference in my sleep quality, and I highly recommend the Serta Power Chill Cooling Pillow Protectors to anyone seeking a cooler and more comfortable night’s sleep.”
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 6, 2023
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Verified Purchase
Birdie
Battle Creek, US
★★★★★ 4
Loose on standard pillow.
Size: Queen, Color: White
Too large for standard pillow. It would fit a queen size pillow much better. It does stay cool.
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Reviewed in the United States on November 20, 2025
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AmazonSmile
San Leandro, US
★★★★★ 5
Soft and cool. Very cool. 🧊
Size: Queen, Color: White
I bought these for my memory foam pillow and they’re excellent for cooling it. I use 2 of these on the pillow for maximum chill factor and it works. They’re very soft, the zippers are high quality. Easy to put on with a bit of stretch- generously sized. They’re stain resistant. I’m glad they’re NOT waterproof because they’d be too hot then. They’re very durable. Wash on delicate setting in a mesh bag and air dry and they last long. They’re very quiet- smooth and silky. Definitely recommend!
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Reviewed in the United States on January 15, 2026
J
Verified Purchase
Jamie Cowan
Phoenix, US
★★★★★ 3
Cool enough
Size: Queen, Color: White, Size: Queen, Color: White
I thought I had purchased pillows so when I received these I was a little disappointed. However that was 100% on me for not reading the listing and just trusting my search. I decided to give them a try and so far they seem ok. They don’t stay cool even though I have them on cooling pillows. They are super thin but very soft. They fit on my pillows perfectly. I don’t think it has improved my sleep quality but it hasn’t made it any worse either. I don’t think they are waterproof but I don’t really want to test that. I like that the zipper is small and seems to be decent quality. Smelled heavily of chemicals when I first took it out of the package but that disappeared after a few minutes.
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Reviewed in the United States on March 21, 2026

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