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Description
Action Clutch Stage 2 Clutch & Flywheel Kit - 2009-2014 Acura TSX (CU2)
When bolt-ons and track use have your 2009-2014 TSX (CU2, K24Z3) slipping a Stage 1 or the tired factory clutch, the Action Clutch Stage 2 (1KS) kit is the step up, and this version pairs the clutch with a lightened flywheel for a complete drivetrain upgrade in one box. It's rated for 110% more holding capacity than stock, built around a reinforced steel-backed segmented Kevlar disc, and it's the right call for a TSX that's built to be driven hard but still has to behave on the street.
Read This First: Tuning Required
This kit requires Hondata FlashPro to run correctly on the CU2. The lightened flywheel changes how the engine picks up and holds idle, and these cars need the tune to keep idle and drivability right rather than fighting the factory calibration. If you don't already have FlashPro on the car, plan for it as part of this install, because the kit is built to be run on a tuned car.
Steel-Backed Segmented Kevlar Disc
This kit uses a reinforced steel-backed segmented Kevlar friction disc. The Kevlar material is where it earns its keep: extended lifespan, smooth engagement, and good heat dissipation, so it holds hard without the harsh on-off feel of an aggressive puck disc. The steel backing adds the strength to handle the extra torque and stand up to repeated hard use. Whether your TSX is on a basic bolt-on setup or running cams, this disc keeps up with what the K24 can put down.
Included Lightened Flywheel
The 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 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 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 a leg workout. You get a big jump in holding capacity without a clutch that beats you up in traffic, which matters on a car you drive to the track and home again.
Know The Intended Use
This kit is built for street and occasional track use, circuit, time attack, and road racing. It is not recommended for drag racing or drifting, since those uses shock-load a clutch in a way this disc isn't designed for. For bolt-on street driving and road-course work, 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 You Get
- Stage 2 steel-backed segmented Kevlar clutch disc
- Single-diaphragm HD pressure plate
- Lightened flywheel (approximately 12 lbs)
- 110% more holding capacity than stock
Fitment
Fits the 2009-2014 Acura TSX (CU2, K24Z3), 6-speed manual transmission. Requires Hondata FlashPro. Not compatible with automatic-transmission TSX variants.
Break-In
A proper break-in is required for the best performance and longevity. Take it easy for the first several hundred miles so the friction surfaces seat and heat cycle evenly, which is what builds the disc's full holding capacity. Avoid riding the clutch, since repeated slipping or clutch-in coasting works against that. Once it's broken in, you've got the full rated capacity.
Best For
- 2009-2014 TSX on full bolt-ons or cams, already tuned
- Daily drivers who want OEM-like engagement plus quicker response from the lighter flywheel
- Occasional circuit, time attack, and road racing
- Anyone whose power has outgrown a Stage 1 or the factory clutch
Not Ideal For
- Cars that won't be tuned, FlashPro is required
- Drag racing or high-rev drag launches
- Drifting or repeated hard abuse, step up to a higher stage
If your CU2 TSX has outgrown a Stage 1 or the factory clutch, this is the one that holds it and wakes it up: 110% more capacity, a Kevlar disc that engages smooth and lasts, and a 12 lb lightened flywheel to sharpen the K24, all in one kit. Just make sure the car is on FlashPro, break it in properly, and it'll deliver everywhere it's meant to.
FITMENT
2009-2014 Acura TSX (K24)
TECHNICAL DATA
1,000 street miles / Keep RPM’s under 4500, no more than half-throttle, no boost (if applicable).
Proper break-in is required in order to retain product warranty, ensure longevity and holding capacity.
Increase in holding capacity is rated in Crank Torque, not Wheel Torque
IN THE BOX
(1) Sprung Organic Disc
(1) Single Diaphragm HD Pressure Plate
(1) Lightened Flywheel
(1) Pilot Bearing / Bushing (when applicable)
(1) Clutch Alignment Tool
(1) Conventional Release Bearing
Action Clutch WARRANTY
ACTION CLUTCH products are manufactured and tested to the highest quality standards. This limited one (1) year warranty offered by ACTION CLUTCH covers defects in material or workmanship in new ACTION CLUTCH products. This warranty extends to the original purchaser only and is nontransferable. Only consumers purchasing ACTION CLUTCH products from authorized ACTION CLUTCH retailers or resellers or through the ACTION CLUTCH website may obtain coverage under our limited warranties.
ACTION CLUTCH warrants this product against defects in material or workmanship as follows:
ACTION CLUTCH will replace at no charge for parts only that proves defective because of improper workmanship. If ACTION CLUTCH is unable to provide a replacement and repair is not practical or cannot be made in a timely fashion, ACTION CLUTCH may elect to refund the purchase price in exchange for the return of the product.
Action Clutch offers a 1 (one) year warranty from the original date of purchase. We also offer a 30-day return policy with a 20% restocking fee.
Our warranty does not cover any problem that is caused by:
(1) Conditions, malfunctions or damage not resulting from defects in material or workmanship. (2) Conditions, malfunctions or damage resulting from (1) normal wear and tear, improper installation, improper maintenance, misuse, abuse, negligence, accident or alteration. (3) Accessories, connected materials and products, or related products not manufactured by ACTION CLUTCH. (4) Damaged input Shaft causing HUB to strip (5) Failure to resurface the flywheel will invalidate Warranty.
Please Note: ACTION CLUTCH will not be liable for labor charges and other intangible or consequent losses that might be claimed as a result of the failure of any part, nor shall they be liable for damages or injury to any persons or property resulting from the misuses or improper installation of any part subject to this warranty.
Our limited warranties are void if a product is returned with removed, damaged or tampered labels or any alterations (including removal of any component or external cover).
ACTION CLUTCH will not provide any warranty coverage unless claims are made in compliance with all terms of the controlling warranty statement included with your product and you follow proper return procedure. To request warranty service, you will need to provide:
- 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
When warranty service is completed, any repaired or replacement product or part will be returned to you postage prepaid.
ACTION CLUTCH SHALL NOT BE LIABLE TO PURCHASER OR ANY OTHER PERSON FOR ANY INCIDENTAL, SPECIAL OR CONSEQUENTIAL DAMAGES, ARISING OUT OF BREACH OF THIS WARRANTY OR ANY IMPLIED WARRANTY (INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OF MERCHANTABILITY)
How Does State Law Apply? The laws of the State of CALIFORNIA, USA, govern our warranties. It gives you specific legal rights, and you may also have other rights that vary from state to state. Our warranties do not affect any additional rights consumers have under laws in their jurisdictions governing the sale of consumer goods. Some states do not allow the exclusion or limitation of incidental or consequential damages, so the limitations or exclusions in our warranty statements may not apply. You may be required by law to give us a reasonable opportunity to correct or cure any failure to comply before you can bring any action in court against us under the Magnuson-Moss Warranty Act.