PRODUCT DETAILS
Action Clutch Stage 1 Clutch & Flywheel Kit - 2004-2008 Acura TSX
If the clutch in your 2004-2008 TSX (CL9, K24A2) is slipping, dragging, or just worn out, the Action Clutch Stage 1 (1OS) kit is the direct replacement that brings it back while adding holding capacity over stock, and this version includes a lightened flywheel for a complete drivetrain upgrade in one box. It's built for TSXs running anywhere from bone stock to basic bolt-ons, and it keeps pedal feel close to OEM, so you fix the clutch, sharpen response, and add some headroom without turning your daily into a chore.
Steel-Backed Copper Kevlar Organic Disc
The kit uses a reinforced steel-backed copper Kevlar organic friction disc. That organic material gives you smooth, progressive engagement and good durability, so it grips without the harsh on-off feel of an aggressive puck disc, while the steel backing adds the strength to hold more torque and stand up to daily wear. Rated for 70% more holding capacity than the factory clutch, it's enough headroom for an intake, header, and exhaust without slippage, while keeping the modulated engagement you rely on in traffic.
Included Lightened Flywheel
This kit comes with a lightened flywheel weighing roughly 12 lbs, a big drop from the heavy factory piece. That reduced rotating mass lets the K24 rev up and settle quicker, so throttle response sharpens and shifts feel faster and more connected. Pairing the flywheel with the clutch means both parts are fresh and matched, and the labor to install them happens once. The honest trade with any lighter flywheel is a little more noise and vibration at idle and slightly more throttle attention off the line, which most owners find well worth the sharper response.
Manageable Pedal Feel
The pressure plate is a single-diaphragm heavy-duty unit. Paired with the organic disc, pedal weight stays manageable, firmer than a worn OEM clutch but not a leg workout. It's a clutch you can live with in stop-and-go and not think about, which is what you want in a TSX that's mostly a daily.
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 You Get
- Steel-backed copper Kevlar organic clutch disc
- Single-diaphragm HD pressure plate
- Lightened flywheel (approximately 12 lbs)
- 70% more holding capacity than stock
Fitment
Fits the 2004-2008 Acura TSX (CL9, K24A2), manual transmission. Confirm you're running the manual before ordering, since an automatic car can't use this kit.
Break-In
A proper break-in is required to maximize disc life and reach full rated holding capacity. Take it easy for the first several hundred miles, no hard launches or aggressive driving, so the friction surfaces seat and heat cycle evenly. Avoid riding the clutch, since repeated slipping works against building its holding capacity. Once it's broken in, you've got the full rated capacity.
Best For
- 2004-2008 TSX running stock to bolt-on modifications
- Daily drivers who want OEM-like engagement plus quicker response from the lighter flywheel
- Heavy-duty street use and mild track use
- Anyone replacing a worn factory clutch who wants to do the flywheel at the same time
Not Ideal For
- Turbocharged or high-power builds, step up to a higher stage
- Repeated hard track abuse, drag launches, or drifting
If your TSX's clutch is done, this is the easy way to do it right: 70% more holding capacity, a Kevlar organic disc that engages smooth and lasts, and a lightened flywheel to wake up the K24, all in one kit. Break it in properly and it'll handle heavy-duty street duty and the occasional track day without complaint.
- 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