ACT 1999 Acura Integra Sport/Perf Street Sprung Clutch Kit
ACT AI4-SPSS is the mildest performance clutch ACT builds for the B-series Acura Integra, and it is the kit to choose when a 1999 Integra GS-R, LS, GS or Type R daily driver has a slipping or worn-out clutch and the owner wants more holding power without a heavy pedal or grabby engagement. It pairs ACT's Sport pressure plate with an organic street disc and is rated at 220 ft-lb at the crank, enough margin for intake, header and tune upgrades on a naturally aspirated B18.
In the Integra, the clutch sits between the flywheel and the five-speed transaxle, and a hydraulic slave cylinder pushes the release fork. The Sport pressure plate uses ACT's own diaphragm design to raise clamp load and reduce deflection, while keeping pedal effort in the light to moderate range. The 3000105 disc uses a full-face organic lining with high copper content for heat transfer, a steel backing for burst strength, a sprung hub that soaks up driveline shock, and a reduced marcel for quicker shifts. ACT's published figures:
If the car will see regular track days or launches, the AI4-SPG6 keeps the same Sport plate with a six-pad ceramic disc. For more clamp load, the AI4-HDSS uses the Heavy Duty plate with a street disc.
Check the hydraulics first. Look at the clutch reservoir level and color and for a wet slave cylinder; a spongy pedal or air in the system can cause grinding that looks like clutch failure. Bleeding it costs very little. For slip, cruise in fourth at low RPM and press to full throttle: if the tach climbs faster than the speedometer, the disc is slipping. Our slipping diagnosis guide walks through that road test, and the clutch slipping causes and fixes page covers oil leaks from the rear main seal that can contaminate a new disc.
Our listing title says 1999 Integra. ACT's chart lists AI4-SPSS for the 1994-2001 Acura Integra 1.8L (GS, GS-R, LS, RS, Special Edition and Type R by year), the 1994-1997 Honda Civic del Sol VTEC, the 1999-2000 Civic Si and the 1998-2001 Honda CR-V EX and LX 2.0L. Earlier 1990-1993 Integras, D-series Civics and K-series cars use different clutches. B-series engines are swapped into many Hondas, so match the engine and transaxle actually in the car; send us the year and VIN, or the engine code, if you are not sure. The full range is in our clutch and rebuild kits collection.
| Brand | ACT |
| Part number | AI4-SPSS |
| Fits | ACT 1999 Acura Integra Sport/Perf Street Sprung Clutch Kit |
| Vehicle fitment | Acura Integra Sport/Perf (1999) |
| Type | Clutch Kits - Single |
| Condition | New |
| Ships | Same business day (in stock), from the USA |
| Warranty | 1-year |
ACT lists the 1994-2001 Integra 1.8L, 1994-1997 Civic del Sol VTEC, 1999-2000 Civic Si and 1998-2001 CR-V EX and LX 2.0L.
ACT rates it at 220 ft-lb at the crank, 19 percent over the factory clutch. That suits stock and lightly modified naturally aspirated B-series engines.
ACT lists light to moderate pedal effort with smooth engagement. The Sport plate is its lightest performance plate, below Heavy Duty and Xtreme.
No. The kit has the pressure plate, disc, release bearing, pilot bearing and alignment tool. Resurface your flywheel or buy one separately.
ACT recommends 300 to 500 miles of mild engagement, such as stop-and-go city driving, before racing or spirited driving. Avoid overheating it during that time.
