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  See more parts for Acura Integra
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ACT HD/Race Sprung 4 Pad Kit Acura Integra 1990-1991 - AI2-HDG4

ACT Advanced Clutch HD/Race Sprung 4 Pad Kit AI2-HDG4

If you're driving a 1990-1991 Acura Integra and looking for a clutch upgrade that can handle the demands of spirited driving or track days, the ACT Advanced Clutch HD/Race Sprung 4 Pad Kit AI2-HDG4 is a solid choice. This kit features ACT's renowned Heavy Duty pressure plate, designed specifically to increase clamp load and reduce deflection, ultimately maximizing clutch life. With a four-stage heat-treating process applied to all diaphragms, you can expect unparalleled performance in both street and race applications.

Why Choose the AI2-HDG4?

The AI2-HDG4 is not just another performance clutch; it’s engineered for those who push their vehicles to the limit. The precision cover stampings provide the rigidity and consistency needed for high RPM reliability. The 4-pad spring-centered race disc is designed to damp torsional vibrations, ensuring a quieter operation while resisting failure under harsh conditions. This means you can confidently shift gears faster, even in the heat of competition.

Installation and Compatibility

Installing the AI2-HDG4 is straightforward for those familiar with clutch replacements. For detailed installation instructions, CLICK HERE.

Features

  • Light to moderate pedal effort with aggressive engagement
  • Moderate friction life, enhanced by ACT's exclusive diaphragm design
  • Precision-engineered using select ceramic friction materials for high heat tolerance
  • Ideal for high horsepower street or race use
  • 100% clamp load tested and dynamically balanced for smooth operation

Technical Specifications

  • Clutch Master Cylinder Included: No
  • Grease Included: Yes
  • Grade Type: Performance
  • Flywheel Included: No
  • Pilot Bushing Included: No
  • Pressure Plate Type: Heavy Duty
  • Release Bearing Included: Yes
  • Clutch Disc Diameter: 8.7 in (220 mm)
  • Disc Material: Ceramic
  • Input Spline Quantity: 24
  • Input Shaft Diameter: 1 in
  • Alignment Tool Included: Yes
  • Disc Type: Sprung Solid
  • Pressure Plate Bolts Included: No
  • Clutch Slave Cylinder Included: No
  • Flywheel Bolts Included: No
  • Pilot Bearing Included: Yes
  • Product Weight: 12.5 lbs
  • Torque Capacity: 310 ft/lbs
  • Torque Capacity Over OE: 0.68

Customer Feedback

Many Acura Integra owners have praised the AI2-HDG4 for its performance. One owner stated, “I installed this clutch on my 1991 Integra, and the difference is night and day. The engagement is crisp, and I can feel the power transfer much better than with the stock setup.” This clutch is a perfect fit for those who demand more from their vehicle, whether on the street or the track.

Final Thoughts

For Acura Integra 1990-1991 owners looking for a reliable, high-performance clutch that can handle the rigors of daily driving and racing, the ACT AI2-HDG4 is a fantastic option. With its robust design and proven track record, you can trust it to deliver when it matters most.

Other Part Numbers:
ACT #actAI2-HDG4

Proposition 65

⚠ WARNING: Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

Vehicle
1990-1991
 Acura Integra

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ACT ? Advanced Clutch Technology | Clutch Kits & Flywheels Built to Handle Real Power

If you've added boost, tuned for more power, or simply want better throttle control, then your stock clutch won't cut it. That?s where ACT (Advanced Clutch Technology) comes in delivering high-performance clutch kits and flywheels designed for real drivers who push their builds on the street, strip, or track.

ACT?s lineup includes everything from daily driver friendly HD kits to hardcore twin disc setups for serious horsepower. Whether you?re launching hard in a WRX, drifting in a 370Z, or canyon carving in an M3, ACT gives you the torque capacity and engagement you need without sacrificing drivability.

Why ACT? Because Power Without Control Is Useless.
  • Hold More Power Engineered to handle turbo, supercharger, and high-compression builds
  • Faster Engagement Stronger pressure plates for better bite off the line
  • Better Pedal Feel Balanced response without going full race-car stiff
  • Reduced Rotational Mass Lightweight flywheels improve rev-matching and response
  • No Guesswork Direct-fit applications, no fabbing, no hassle
ACT Clutch Kits and Flywheels Fit the Cars Enthusiasts Build

ACT doesn?t just make universal performance parts ? they build complete, vehicle-specific clutch solutions for enthusiast favorites. Whether you daily a Civic Type R, track a Subaru STI, drift a 240SX, or drag a Mustang GT, ACT offers the right clutch to match your build goals.

Top supported platforms include the Nissan 350Z/370Z, Toyota Supra A90, Chevy Camaro SS/ZL1, Mitsubishi Evo, Ford Focus RS/ST, and BMW M3/M4 ? each with clutch options tuned to your driving needs.

What ACT Offers:
  • Performance Clutch Kits From HD street kits to twin-disc race systems
  • Clutch Discs 6-puck, full-face, rigid or sprung to match your style
  • Pressure Plates Heavy-duty options that increase clamp load without sacrificing control
  • Chromoly Lightweight Flywheels Quicker revs, smoother shifts, and less drivetrain stress
  • Complete Hardware Kits Everything you need for a proper install
Performance Tested. Driver Approved.

ACT isn?t hype ? it?s proven. Their clutches are SFI-certified, track-tested, and used by racers in drag, time attack, autocross, drift, and rally. But what really matters? They hold power, last longer, and feel right even after hundreds of hard launches or hours of canyon carving.

Whether you're upgrading for more power or replacing a tired OEM clutch, ACT gives you the bite, strength, and feel to drive harder with confidence. No compromises, no excuses just parts that work when it matters.

ACT warrants all products to be free of defects in materials and workmanship for normal use and service for a period of one (1) year from retail purchase. Written notice must be immediately given to ACT within the warranty period. We require a copy of the purchase receipt showing the unit was purchased from an Authorized Dealer or Advanced Clutch Technology directly to verify the product is under warranty. Products purchased used do not carry a warranty. This warranty is to the original purchaser and is non-transferable. All non-warranty items are subject to a $50 inspection bench test fee.

ACT reserves the right to examine any part returned for warranty claim to determine, to ACT's satisfaction, whether the material or workmanship of the part does not conform to this limited warranty. ACT's obligation under this warranty shall be limited to repairing, replacing, or crediting, at its option, any part which is deemed covered by ACT. No labor, lift or storage charges will be reimbursed for any reason. Damage to ACT's parts resulting from misuse, improper use, or abuse shall void this limited warranty. Failure to follow ACT's installation instructions and the vehicle manufacturers installation procedures and specifications shall void this limited warranty.

ACT undertakes no responsibility for the quality of the goods except as otherwise provided in this contract. ACT assumes no responsibility that the goods will be fit for any particular purpose for which you may be buying these goods, except as otherwise provided in the contract. ACT shall not be liable for any damage or injury to persons or property resulting from improper installation or misuse of any part subject to this warranty.

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