SKU: 79583041359

FM4-XTSS - XT/Perf Street Sprung

Sale price$275.85 Regular price$306.50
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Ships within 48 hours · Estimated delivery Sep 19 - Sep 24

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Description

FM4-XTSS - XT/Perf Street SprungSpecifications: Item Description: XT Perf Street Sprung Product Weight (lbs.): 23. 3 Torque Capacity (ft lbs.): 575 Torque Capacity Over OE: 70% Disc Material: Organic Clutch Disc Diameter (Inches): 10. 5 Clutch Disc Diameter (Millimeters): 266 Input Shaft Diameter (inches): 1. 125 Pressure Plate Type: Xtreme Warranty: 12 Months Description: Upgrade your Mustang's clutch system with the FM4 XTSS kit from ACT, featuring an Xtreme pressure plate

Specifications:

  • Item Description: XT/Perf Street Sprung
  • Product Weight (lbs.): 23.3
  • Torque Capacity (ft/lbs.): 575
  • Torque Capacity Over OE: 70%
  • Disc Material: Organic
  • Clutch Disc Diameter (Inches): 10.5
  • Clutch Disc Diameter (Millimeters): 266
  • Input Shaft Diameter (inches): 1.125
  • Pressure Plate Type: Xtreme
  • Warranty: 12 Months

Description: Upgrade your Mustang's clutch system with the FM4-XTSS kit from ACT, featuring an Xtreme pressure plate designed for the most demanding drivers. ACT Xtreme pressure plates utilize an exclusive diaphragm design to increase clamp load, reduce deflection, and maximize clutch life. Each diaphragm undergoes a four-stage heat-treating process for unparalleled durability. Precision cover stampings ensure rigidity and consistency.

The kit includes ACT's Performance street discs, which feature premium organic materials with high copper content for better heat transfer and steel-backed lining for greater burst strength and durability. These discs have reduced marcel for faster shift action to complement ACT pressure plates, providing quiet operation with increased strength and reliability.

Recommended Use:

  • Recommended for street and race use

ACT Difference:

  • 100% clamp load tested and dynamically computer balanced for smooth high RPM reliability

Vehicle Fitment:

  • Application: Engine
    • 1986-1995 Ford Mustang GT: 5.0 V8 GAS FI | OHV | Naturally Aspirated
    • 1986-1995 Ford Mustang LX: 5.0 V8 GAS FI | OHV | Naturally Aspirated
    • 1993 Ford Mustang SVT Cobra: 5.0 V8 GAS FI | OHV | Naturally Aspirated
    • 1993 Ford Mustang SVT Cobra R: 5.0 V8 GAS FI | OHV | Naturally Aspirated
    • 1995 Ford Mustang GTS: 5.0 V8 GAS FI | OHV | Naturally Aspirated

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: 79583041359

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4.7 ★★★★★
Based on 11 reviews
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Odalis Perez
Port Orchard, US
★★★★★ 3
Too big for puppies
Color: A.Green+Orange
The balls were a bit too big for my 6 month chihuahuas:/ they are as big as a tennis ball so puppies didn’t like nor play with them
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 26, 2026
S
Verified Purchase
Shawn
Lake Worth, US
★★★★★ 5
Frenchie approved
Color: A.Orange+Blue+Green
Frenchie approved
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Reviewed in the United States on May 6, 2026
K
Verified Purchase
Karen W.
Charlottesville, US
★★★★★ 5
Soft and light
Color: A.Orange+Blue+Green
My doxie loves them
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Reviewed in the United States on April 26, 2026
S
Verified Purchase
Sara
Birmingham, US
★★★★★ 5
Squeaky Spiky Ball (Submitted by OG, The Conqueror)
Size: 4.5 Set of 4
FIVE OUT OF FIVE PAWS. THIS IS THE GREATEST BALL EVER MADE. My name is OG, and I am a machine built for destruction. For years, I have systematically dismantled every supposed "heavy-duty" toy that dared cross my path. They all fail. They all surrender. But this Spiky Ball? This is my worthy adversary. This is The One. If you have mighty jaws like mine, this isn’t just a toy—it’s a commitment. The Aesthetics & Grip (5/5 Jaws) This ball is bright orange. This is important because it means my Dog-Parent cannot pretend they don't see it when I drop it, covered in drool, directly on their laptop. The spikes are the best part. They are not soft and pointless like some other toys. These spikes dig right into my gums. It's the perfect texture for a serious, focused chew session. Whether I'm running full-speed or we are locked in a heavy-duty Tug-of-War, those spikes give me the grip I need to apply maximum rotational torque. This ball never slips. It demands I bring my A-game. The Squeak: My Personal Battle Horn (5/5 Ears) The volume on this thing is set to LEGENDARY. They say a quiet dog is a happy dog. WRONG. A loud dog is an active, conquering dog. The squeak is sharp, loud, and glorious. It's not a gentle little peep—it's a declaration. When I hear it, I know the hunt is on. More importantly, when I make it squeak, the humans instantly know I require attention, praise, or the immediate launch of the ball across the yard. It is the best attention-getter I own. Durability: Unstoppable Force Meets Immovable Object (5/5 Eternal Glory) This ball is a mystery. It has no discernible weaknesses. I have performed the full Pitbull Destruction Protocol on this Spiky Ball every day for weeks: The Gnaw: Prolonged, focused effort to crack the surface—(Failure. It laughs.) The Shake: Head-whipping force designed to dislocate any internal components—(Failure. The squeak remains.) The Backyard Abandonment: Left in the rain and dirt for maximum entropy—(Failure. Still orange.) Most toys are a snack. This toy is a lifetime project. It truly is built for aggressive chewers, and I respect that. It is the only toy that challenges me. Recommendation If your dog is serious about their job (chewing, fetching, and being loud), you must buy this. It is the only thing that stands up to my power. It’s loud, it’s spiky, and it’s the best. Go buy it now, and tell them OG sent you. OG, currently performing a full-body gnaw and shake, signing off.
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Reviewed in the United States on November 11, 2025
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nolly
Los Angeles, US
★★★★★ 5
Excellent product
Size: 4.5 Set of 4
Our service dog Max (named after Max Muncy 3rd baseman for the Dodgers) lives these balls. They are a sturdy product. Just what we needed for our Max.
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Reviewed in the United States on May 26, 2026

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