Pay in installments of $58.00 with
,
and
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 29 - Aug 3
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
AI2-SPR4 - Sport/Race Rigid 4 PadSpecifications: Item Description: Sport Race Rigid 4 Pad Product Weight (lbs.): 11. 8 Torque Capacity (ft lbs.): 280 Torque Capacity Over OE: 52% Disc Material: Ceramic Clutch Disc Diameter (Inches): 8. 7 Clutch Disc Diameter (Millimeters): 220 Input Shaft Diameter (inches): 1 Pressure Plate Type: Sport Warranty: 12 Months Description: The AI2 SPR4 kit by ACT features a Sport pressure plate designed for an upgrade. Here are the key features: Sport
Specifications:
- Item Description: Sport/Race Rigid 4 Pad
- Product Weight (lbs.): 11.8
- Torque Capacity (ft/lbs.): 280
- Torque Capacity Over OE: 52%
- Disc Material: Ceramic
- Clutch Disc Diameter (Inches): 8.7
- Clutch Disc Diameter (Millimeters): 220
- Input Shaft Diameter (inches): 1
- Pressure Plate Type: Sport
- Warranty: 12 Months
Description: The AI2-SPR4 kit by ACT features a Sport pressure plate designed for an upgrade. Here are the key features:
Sport Pressure Plate:
- Utilizes exclusive diaphragm design to increase clamp load, reduce deflection, and maximize clutch life.
- Endures a four-stage heat-treating process for unparalleled performance and durability.
- Precision cover stampings ensure rigidity and consistency for reliable performance.
4-Pad Rigid Race Disc:
- Made with high-quality ceramic friction materials for optimal performance.
- Chrome-moly hub is heat-treated for strength and durability.
- Lightweight, rigid design allows for quicker shifts and smooth service.
Enhanced Performance:
- Offers light to moderate pedal effort with aggressive engagement, resulting in increased gear rattle.
Quality and Durability:
- Carefully engineered, precisely assembled, and accurately balanced for maximum performance and reliability.
- 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:
-
Application: Engine
- 1990 Acura Integra GS: 1.8 L4 GAS FI 1834cc
- 1990 Acura Integra LS: 1.8 L4 GAS FI 1834cc
- 1990 Acura Integra RS: 1.8 L4 GAS FI 1834cc
- 1991 Acura Integra GS: 1.8 L4 GAS FI 1834cc
- 1991 Acura Integra LS: 1.8 L4 GAS FI 1834cc
- 1991 Acura Integra RS: 1.8 L4 GAS FI 1834cc
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:
- 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
4.7 ★★★★★
Based on 25 reviews
Sort
Product Reviews
★★★★★ 5
Impressive Sound Deadening Solution with Enhanced Audio Quality
Model: NewSLS50_52
I recently purchased the Siless 50 mil (1.3mm) 52 sqft Car Sound Deadening mat, and I am delighted with the results it has delivered. Right from the start, I was impressed with the packaging, which ensured the product arrived in perfect condition.
One of the standout features of this sound deadening mat is its ease of use. It was a breeze to cut and modify according to my specific needs. Whether I needed to cover specific areas or customize the size, the mat accommodated my requirements effortlessly. This flexibility made the installation process a breeze.
The Siless Sound Deadening mat has proven to be highly effective in reducing outside noise within my vehicle. With just a half cabin install, I noticed a significant reduction of approximately 10 decibels, making my driving experience much quieter and more comfortable. The mat acted as a reliable barrier against external noise, allowing me to enjoy a more peaceful ride.
Furthermore, the sound quality from my vehicle's audio system experienced a noticeable improvement. The Siless mat effectively dampened vibrations and minimized resonance, resulting in cleaner and more refined audio output. The mat's thickness of 50 mil (1.3mm) ensures optimal sound absorption, contributing to its effectiveness in creating a quieter and more enjoyable driving environment. I can now appreciate the full range of tones and enjoy a more immersive music experience during my drives.
Overall, I highly recommend the Siless 50 mil Car Sound Deadening mat for anyone seeking a reliable and effective solution to reduce noise and enhance audio quality in their vehicle. The easy cutting and modifying process, along with the excellent packaging, contribute to a seamless installation experience. With a significant reduction in outside noise and an improvement in sound system performance, this sound deadening mat has exceeded my expectations.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2023
★★★★★ 5
Good quality sound deadener at a good price.
Model: NewSLS50_52
Quality sound deadening that adheres to body panels well. You can easily hear the vibration reduction after just the first piece by tapping on the body panel before and after.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 21, 2025
★★★★★ 4
Good stuff at a good price
Model: NewSLS50_52
Works well and sticks well. I used a roller and it has been over a year and everything still sticking as good as day i put it everywhere. I didnt use any adhesive but I did wipe everything down with acetone before I applied. Good stuff at a good price
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 23, 2025
★★★★★ 5
Good value
Model: NewSLS50_52, Model: NewSLS50_52
Working perfectly. Install of stereo equipment and carpet left me wanting some heat and sound resistant materials.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 23, 2026
★★★★★ 5
BUY THIS ONE!
Model: NewSLS50_52
This is one of the good ones. There are other brands just as good, and manny brands are worse, but this handles well, rolls down easily, doesn't come off at all easily, and adapts to dips and curves like a champ.
Appropriately heavy and dead, I'm happy with the way it smothers panel resonances and even at muffling direct sound, like a big hand over my Uncle Harry's eternally noisy mouth. You can rip the foil but you have to work hard at doing that.
Remember to buy a brayer; you can roll overlaps nice and thin. Also remember to pre-wipe the sheet metal with a decent solvent like acetone or Stoddard/Varsol. It should last forever.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 26, 2025