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Description
Z64-XTR4 - XT/Race Rigid 4 PadSpecifications: Item Description: XT Race Rigid 4 Pad Product Weight: 14. 7 lbs. Torque Capacity: 560 ft lbs. Torque Capacity Over OE: 130% Disc Material: Ceramic Clutch Disc Diameter: 9. 4 inches 240 millimeters Input Shaft Diameter: 1 inch Pressure Plate Type: Xtreme Warranty: 12 MonthsDescription: The Z64 XTR4 kit features an Xtreme pressure plate designed for the most demanding driver. ACT Xtreme pressure plates utilize an exclusive diaphragm
Specifications:- Item Description: XT/Race Rigid 4 Pad
- Product Weight: 14.7 lbs.
- Torque Capacity: 560 ft/lbs.
- Torque Capacity Over OE: 130%
- Disc Material: Ceramic
- Clutch Disc Diameter: 9.4 inches / 240 millimeters
- Input Shaft Diameter: 1 inch
- Pressure Plate Type: Xtreme
- Warranty: 12 Months
Description:
The Z64-XTR4 kit features an Xtreme pressure plate designed for the most demanding driver. ACT Xtreme pressure plates utilize an exclusive diaphragm design to enhance clamp load, reduce deflection, and maximize clutch lifespan. The diaphragms undergo a rigorous four-stage heat-treating process for exceptional performance. Precision cover stampings in ACT pressure plates ensure rigidity and consistency. ACT's 4-pad rigid race discs are crafted with high-quality ceramic friction materials. The chrome-moly hub is heat-treated for strength and durability. The lightweight, rigid design allows for quicker shifts and smooth, trouble-free service. With the 4-pad rigid race disc, engagement is harsher, but shifting is faster. This disc is well-suited for smaller disc sizes in smaller engines.
Key Points:
- Feel: Moderate to heavy pedal effort, aggressive engagement, increased gear rattle
- Life: Moderate friction life extended by ACT's exclusive diaphragm design; rigid design may increase spline wear
- Quality: Carefully engineered, precisely assembled, accurately balanced, uses select ceramic friction materials for high heat tolerance and maximum performance
- Recommended Use: Recommended for race use only
- ACT Difference: 100% clamp load tested and dynamically computer balanced for smooth high RPM reliability
Vehicle Fitment:
The kit is compatible with the following vehicles:
- 1988 Mazda 626 Turbo (2.2 L4 GAS FI 2184cc | SOHC | Turbocharged)
- 1988 Mazda 626 Turbo 4WS (2.2 L4 GAS FI 2184cc | SOHC | Turbocharged)
- 1988 Mazda 929 Base (3.0 V6 GAS FI 2954cc | SOHC)
- 1988 Mazda MX-6 GT (2.2 L4 GAS FI 2184cc | SOHC | Turbocharged)
- 1989 Ford Probe GT (2.2 L4 GAS FI | SOHC | Turbocharged)
- 1989 Mazda 626 Turbo (2.2 L4 GAS FI 2184cc | SOHC | Turbocharged)
- 1989 Mazda MX-6 GT (2.2 L4 GAS FI 2184cc | SOHC | Turbocharged)
- 1989 Mazda MX-6 GT 4WS (2.2 L4 GAS FI 2184cc | SOHC | Turbocharged)
- 1990-1991 Ford Probe GT (2.2 L4 GAS FI | SOHC | Turbocharged)
- 1990 Mazda 626 GT (2.2 L4 GAS FI 2184cc | SOHC | Turbocharged)
- 1990 Mazda MX-6 GT (2.2 L4 GAS FI 2184cc | SOHC | Turbocharged)
- 1990 Mazda MX-6 GT 4WS (2.2 L4 GAS FI 2184cc | SOHC | Turbocharged)
- 1991 Ford Probe GT (2.2 L4 GAS FI | SOHC | Turbocharged)
- 1991 Mazda 626 GT (2.2 L4 GAS FI 2184cc | SOHC | Turbocharged)
- 1991 Mazda MX-6 GT (2.2 L4 GAS FI 2184cc | SOHC | Turbocharged)
- 1992 Ford Probe GT (2.2 L4 GAS FI | SOHC | Turbocharged)
- 1992 Mazda MX-6 GT (2.2 L4 GAS FI 2184cc | SOHC | Turbocharged)
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.8 ★★★★★
Based on 26 reviews
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Product Reviews
★★★★★ 5
I like it
Size: Queen (Adjustable Foam)
I have been trying to find the "perfect" pillow. I am not sure if this would count as the perfect pillow, but it is better than my previous pillow. I have not been waking up with a stiff neck and soreness across my shoulders. It is more firm than I thought it would be. But so far, so good.
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Reviewed in the United States on December 25, 2025
★★★★★ 3
Decent firm pillow
Size: Queen (Adjustable Foam)
I've been using the shredded foam pillow since January. At first it was too packed/firm, so I had to remove some of the stuffing from mine. When fully full, it is a chore to get it in/out of our standard pillow cases.
Over time, the pillow has developed a divot from where my head rests the most, so I'll need to fully remove/fluff/reinsert the foam to get it back into shape. Overall, I find the comfort of this pillow just okay. It absorbs your head heat even in the winter, so if you prefer a cool pillow, I don't recommend it. It does seem to be a good quality pillow otherwise. I expect I'll be able to use this one for a few years without it falling apart. It doesn't smell bad either.
My husband really likes the pillow, but I've also seen him sleep comfortably on very old pillows that have turned into pancakes... so do with that information what you will.
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Reviewed in the United States on June 25, 2025
★★★★★ 5
Best Pillow ever
Size: Queen (Adjustable Foam)
I am in love with this pillow. I have such a hard time finding a pillow that works for me because they are usually to big or too flat. This pillow is right where I need it to be. It is soooo comfortable. My neck has no pain anymore. The quality is high as well. No bad stitching. The stuffing is evenly distributed and the pillow is so soft sometimes I don't even want to use a pillow case but I do haha. Definitely worth the money.
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Reviewed in the United States on November 6, 2025
★★★★★ 5
These pillows are way nicer than hotel pillows!
Size: Queen / Standard, Color: White
This is a real review and I am not a robot. I’m actually sleeping with these pillows right now. They are so comfortable the right softness levels. Oh my gosh they’re awesome. I don’t know about hotel pillows, but these are way better quality form with your head and you sleep like a baby.
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Reviewed in the United States on May 29, 2026
★★★★★ 5
Absolutely Amazing!! Truly the perfect pillow!
Size: Queen / Standard, Color: White
I absolutely love these pillows. They couldn't be more perfect! I have spent years buying and throwing out pillow after pillow. I struggle with a lot of neck and upper back pain and I struggled even more trying to find the right pillow on top of spending several hundred dollars on pillows that just got tossed. If you want a great night of sleep and you want to wake up feeling refreshed and not struggling with fatigue and every day neck or back pain you absolutely MUST give these pillows a try!!! They are super easy to wash, made with great quality and have not once bothered my many allergies like most pillows do. I have not noticed any of the chemical odors moat pillows give off, easy to adjust does great with just occasional fluffing. So far has stayed fluffy for me although I did put it in the dryer a time or two as the instructions stated to help with extra fluff and also because I couldn't wait for them to air fluff when they first arrived, an Air B&B we stayed at had these and I ordered them before we even headed back home I loved them so much I had to order my own and was too impatient to wait!
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Reviewed in the United States on May 30, 2026
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