Action Clutch Stage 2 Clutch Kit for 99-00 Civic Si EM1

Action Clutch Stage 2 Clutch Kit - 1999-2000 Honda Civic Si (EM1, B16A2)

Stepping up the power in your EM1 Civic Si? The Action Clutch Stage 2 kit is built for full bolt-on and mild turbo B16A2 setups, where the factory clutch and even a Stage 1 start to run out of grip. It's rated for 110% more torque capacity than the stock clutch, so it's the upgrade for drivers who want real holding power and long-term durability without giving up streetability.

Steel-Backed Segmented Kevlar Disc

This kit uses a reinforced steel-backed segmented Kevlar friction disc with a sprung center. The Kevlar material is where it earns its keep: extended lifespan, smooth engagement, and excellent heat dissipation, so it grips hard without the harsh on-off feel of an aggressive puck disc. The steel backing adds the strength to hold the extra torque and stand up to daily driving, and the sprung hub soaks up driveline shock to keep engagement smooth. Whether you're on a basic bolt-on setup or running cams, this disc keeps up.

Manageable Pedal Feel

The pressure plate is a single-diaphragm heavy-duty unit. Paired with the Kevlar disc, it delivers an OEM-like pedal feel and smooth engagement once it's broken in, firmer than a worn stock clutch but not the leg workout a Stage 3 or puck setup demands. It's a clutch that holds serious power and still works in daily traffic.

Know The Intended Use

This kit is built for street and occasional track use and handles mild turbo power, which is the main step up from the Stage 1. It is not recommended for drag racing or drifting, since those uses shock-load the clutch in a way this disc isn't designed for. For bolt-on and mild-boost street and road-course driving, it's right in its element.

Action Clutch's Enclosed Spring Retainer

One engineering detail worth knowing: Action Clutch uses patented fully enclosed spring retainers on the disc. On conventional discs, the torsional springs inside the hub can dislodge under stress and fly into your transmission or engine internals. Action Clutch's enclosed design prevents that failure mode entirely. Their engineering team carries over 60 years of combined experience, and every kit is inspected and certified before it ships.

What's Included

• (1) Sprung segmented Kevlar clutch disc
• (1) Single-diaphragm HD pressure plate
• (1) Pilot bearing / bushing (when applicable)
• (1) Clutch alignment tool
• (1) Conventional release bearing

Fitment

Direct fit for the 1999-2000 Honda Civic Si (EM1) with the B16A2 engine. If you're unsure about compatibility with a swap or a non-stock transmission, contact us before ordering.

Break-In Procedure

A proper break-in of 1,000 street miles is required for the best performance and longevity. During break-in, keep RPM under 4,500, use no more than half-throttle, and run no boost (if applicable). Avoid riding the clutch, since heat cycling the disc evenly is what builds its holding capacity, while repeated slipping or clutch-in coasting works against it. Once break-in is complete, you've got the full rated capacity.

Best For

• 1999-2000 Civic Si B16A2 on full bolt-ons or mild turbo
• Builds with cams or similar engine modifications
• Daily drivers who want OEM-like engagement with a big jump in holding capacity
• Street and occasional track use

Not Ideal For

• Drag racing or high-rev drag launches
• Drifting or repeated hard track abuse

If your EM1's power has outgrown the factory clutch, the Stage 2 is the one that holds it: 110% more capacity, a Kevlar disc that engages smooth and lasts, and manners that still work on the street. Break it in properly, keep it off the drag strip and out of drift events, and it'll deliver everywhere it's meant to.