PRODUCT DETAILS
Action Clutch Stage 4 Clutch Kit - 2003 Acura CL Type-S (J32A2)
The Action Clutch Stage 4 (1MD) kit is the race-only step at the top of the range for the 2003 Acura CL Type-S. It pairs a heavy-duty single-diaphragm pressure plate and reinforced drive straps with an unsprung MIBA ceramic disc, available in 4-puck or 6-puck. Rated for 170% more holding capacity than the factory clutch, it's built for dedicated race cars that need maximum control and grip and don't have to compromise for daily-driver manners.
This One Is Not For The Street
Read this first, because it's the whole point of the Stage 4: this kit is intended for race applications, drag, road, and drift, and is not meant for street use. If your CL-S sees any daily driving, the Stage 3 or a lower stage is the right call. The Stage 4 exists for a car that goes to the track and comes home on a trailer.
Unsprung MIBA Ceramic Disc
The difference from the Stage 3 is the unsprung disc. Dropping the sprung center hub removes the springs that normally absorb driveline shock, which is what gives the Stage 4 its fastest, most direct engagement and lets it handle the abuse of race launches. The trade is harshness: engagement is sharp and on-off, you'll get noticeable chatter, and the drivetrain feels every bit of it. That's exactly what a race car wants and exactly why it's miserable on the street. Like any ceramic disc, the chatter minimizes after a proper break-in, but an unsprung ceramic disc is aggressive by design.
4-Puck Or 6-Puck
You can run the disc as a 4-puck or a 6-puck. The 4-puck is marginally easier to modulate off the line, while the 6-puck adds surface area for more holding capacity and a firmer grab. Both are aggressive race pucks, so pick based on your power level and launch style rather than any expectation of street comfort.
Works With Your OEM Dual Mass Flywheel
This kit is compatible with the factory OEM dual mass flywheel on the CL Type-S, so no flywheel replacement is required unless yours is already worn. You reuse the factory flywheel and step up the clutch. If your dual mass flywheel is worn or failing, handle it while you're in there, but a healthy one carries right over.
Pick The Right Kit For Your Power
One important note: buying the wrong stage for your engine's power output can cause premature clutch failure, transmission damage, and void warranty eligibility. The Stage 4 is a lot of clutch, so make sure it actually matches your build. If you're unsure which kit is right for you, contact Action Clutch directly before ordering rather than guessing.
Quality Checked Before It Ships
Every kit is inspected and signed off by one of Action Clutch's engineers, who carry over 60 years of collective experience, before it's released as a finished product. Even on a dedicated race clutch, you're getting a unit that's been checked for consistent, reliable performance rather than pulled straight off the line.
Break-In
Even a race clutch needs a proper break-in. Easy driving for the first several hundred miles lets the friction surfaces seat and heat cycle evenly, which settles the engagement as much as an unsprung ceramic disc will and builds its holding capacity. Avoid riding the clutch and don't hammer it before it's broken in, since repeated slipping works against that.
What You Get
- Unsprung MIBA ceramic clutch disc (4-puck or 6-puck)
- Heavy-duty single-diaphragm pressure plate with reinforced drive straps
- 170% more holding capacity than stock
- Compatible with the OEM dual mass flywheel
Fitment
Fits the 2003 Acura CL Type-S with the J32A2 engine (BYBA/BGRA transmission). Compatible with the factory OEM dual mass flywheel, no flywheel replacement required unless yours is worn.
Best For
- Dedicated race CL Type-S builds
- Drag, road racing, and drift use
- Drivers who need the fastest, most direct engagement and maximum holding capacity
Not Ideal For
- Any street or daily-driven car, choose the Stage 3 or lower
- Anyone wanting smooth, chatter-free engagement
If you're building a race-only CL Type-S and want the most direct, highest-capacity clutch in the Action Clutch range, the Stage 4 is it: an unsprung MIBA ceramic disc in 4 or 6 puck, reinforced for abuse, rated to 170% over stock, and compatible with your factory dual mass flywheel. Match it honestly to your power, keep it out of a street car, and break it in before you launch on it.
- The sales receipt or other evidence of the date and place of purchase.
- A description of the problem.
- Delivery of the product or the defective part, postage prepaid by buyer and carefully packed and insured, to: ACTION CLUTCH, 3912 WHITTIER BLVD, LOS ANGELES, CA 90023