PRODUCT DETAILS
The Competition Clutch Stage 4 Strip Series clutch kit, MFG SKU 8017 1620, is a single disc clutch and pressure plate package that replaces the factory setup on specific early Integra fitments. If you need a real 1991 integra clutch upgrade or you are piecing together a 1990 acura clutch kit plan, this is the 1990 integra competition clutch option that matches the correct geometry and spline. The pressure plate supplies clamp load at the flywheel, and the disc transfers torque into the input shaft while still letting you fully disengage for clean shifts.
Honda made the factory clutch smooth and friendly, not happy about repeated hard launches or higher torque. Once you start leaning on the car, the usual weak points show up fast, clamp load, friction material heat tolerance, and how well the disc survives repeated high energy engagements. This competition clutch stage 4 changes the whole vibe versus an organic full face disc by using a segmented ceramic puck disc and a sprung hub, which is why people pick it as an integra stage 4 clutch kit when the stock stuff quits.
Here is what you actually get. A 6 puck integra clutch kit with ceramic buttons and a sprung hub. Less friction area than full face means it tends to bite harder, and ceramic tolerates heat better than typical organic linings, which matters when you do back to back pulls or a few aggressive launches. The sprung hub adds some torsional cushion so the hit into the drivetrain is less violent than a rigid hub puck disc. It still is not going to feel like stock, but it will be less punishing than a solid hub stage 4 ceramic clutch integra.
- Manufacturer SKU: 8017 1620
- Series: Stage 4 Strip Series 1620
- Disc design: six puck high torque sprung disc
- Friction material: ceramic buttons
- Kit includes: performance pressure plate, clutch disc, applicable release and pilot bearings where used for the application, and an alignment tool
- Break in requirement: 300 mile break in recommended for this setup
- Torque capacity statement: manufacturer states up to 250 percent increase in torque capacity for the Stage 4 1620 series
- Warranty statement: 90 day limited warranty is commonly listed for this kit
- Vehicle fitment: 1990 to 1991 Acura Integra
If you are shopping for a high torque integra clutch because your setup keeps glazing or slipping, this is the type of clutch that makes sense. People usually land here when they want a puck style ceramic disc with a sprung hub plus a matching pressure plate, and they need the exact 8017 1620 fit. For a performance clutch integra 1991 build, especially if you drive it like you mean it, this is a common step up from OE style parts.
Notes for search and fitment clarity, this is commonly cross shopped as an acura integra clutch kit, an integra performance clutch kit, a 1991 integra gs clutch upgrade, and for B series swaps it often gets called out as a competition clutch b18a1 option. If you are specifically building around a b18a1 stage 4 clutch or looking for a b18a1 ceramic clutch, confirm the exact application and spline before you order, because fitment comes down to the transmission and the intended chassis, not just the engine label.