AI2-SPR4 - Sport/Race Rigid 4 Pad
SKU: 64158119582

AI2-SPR4 - Sport/Race Rigid 4 Pad

Sale price$208.80 Regular price$232.00
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Ships within 48 hours · Estimated delivery Jul 6 - Jul 11

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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:
  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: 64158119582

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Terry E.
Belleville, US
★★★★★ 5
GREAT!
Color: Multicolor-4pack-a1, Size: XX-Large
So comfortable and soft. I love them! No elastic. Sizes were accurate.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 22, 2026
I
Verified Purchase
Isabel H.
Louisville, US
★★★★★ 5
10/10
Color: Multicolor-4pack-a1, Size: Small
These are some of my favorite underwear. I find myself reaching for these constantly. They're very good quality and very stretchy. I'm 140 5'3 and I got a small they fit great. Someone larger or smaller would fit in the small too. I do stress that the leg holes are a bit tight on my thighs and I don't have thick thighs at all. On someone with thicker thighs I'd say size up to a medium. You can wear these as mid/high waisted or low waisted. They're versatile! The cotton gusset is a plus too❣️
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Reviewed in the United States on May 17, 2026
M
Verified Purchase
Miss Stevie
Waukegan, US
★★★★★ 5
Better than Haynes at for less money
Color: Multicolor-4pack-a1, Size: XX-Large
I am surprised by the quality of these knickers. They are better than Haynes for less money and when I say they’re better, I mean far better, but I can’t believe how comfortable and STRETCHY best underwear is
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 25, 2026
E
Verified Purchase
Elaine phiri
Phoenix, US
★★★★★ 5
love love love!!
Color: Multicolor-4pack-a1, Size: Medium
like my daily driver now, like i never thought underwear could be this good untill now! have bought 2 4packd and will probably get more in the future :) they are snug but not suffocating, with my darker skin i was worried of them getting darker in that area but so far(3-4 months) they’ve been holding up well and clean easily in the washing with a bit of stain remover!
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Reviewed in the United States on May 19, 2026
M
Verified Purchase
Mark & Ashley
Cuba, US
★★★★★ 3
Satisfactory
Color: Multicolor-4pack-a1, Size: X-Large
If your wanting an easy on high waisted underwear these work. They are honestly strange material, a mix of three different things- not bad but different. Not seamless, might ride up, slightly on the thicker side. Will last a while. Comfortable enough but not amazing. Got for after a surgery and needed something different- these worked but would I get on a normal day probably not.
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Reviewed in the United States on May 15, 2026

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