SKU: 87845725586

K- Tuned K-Series Complete CMC & Slave Kit

Sale price$112.50 Regular price$125.00
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Ships within 48 hours · Estimated delivery Sep 2 - Sep 7

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Description

K- Tuned K-Series Complete CMC & Slave KitThe 2002 2006 RSX, 2002 2005 EP3, 2006 2011 8th Gen Civic Si, 2012 2015 Civic Si, and 2004 2008 Acura TSX all have a known issue with their factory clutch master cylinders (CMC). If you look at the CMC on these cars more closely, you'll notice that all of these models have a triangular shaped feedback plate positioned at the very end of the cylinder. This plate is basically a secondary valve that was designed to slow down the clutch engagement and

The 2002-2006 RSX, 2002-2005 EP3, 2006-2011 8th Gen Civic Si, 2012-2015 Civic Si, and 2004-2008 Acura TSX all have a known issue with their factory clutch master cylinders (CMC). If you look at the CMC on these cars more closely, you'll notice that all of these models have a triangular shaped feedback plate positioned at the very end of the cylinder. This plate is basically a secondary valve that was designed to slow down the clutch engagement and reduce shock to the clutch itself and the surrounding drivetrain parts. This setup might be perfectly fine for people that just drive their cars for simple daily use, but the delayed engagement can cause wear to the synchros and possibly even the gears on performance applications. The reason is fairly simple, the factory CMC delays the clutch operation, so it does not open fast enough to keep up with a fast shift. This means that pressure is being applied to the transmission synchros during the shift, before they are ready for the actual gear change.

The K-Tuned Clutch Master Cylinder Upgrade Kit was designed to completely replace the original factory cylinder and offer real time clutch engagement to support faster shifting. We have put together a complete bolt-on kit that includes a direct replacement CMC, our high pressure 3AN clutch line, plus all of the necessary fittings needed for installation. The factory clutch fluid reservoir is reused and connected the same way it was in stock form. The only thing we suggest is checking out your slave cylinder on the trans to confirm it is leak free. Aside from that, installation is pretty simple, install the parts and bleed the system using some new clutch fluid.

The K-Tuned Slave Cylinder is a great upgrade for those wanting to replace leaking or worn out OEM units. Many new K-Series cars (05-06 RSX, 06+ Civic Si) use a slave cylinder that has an internal oil restrictor that further slows the movement of the fluid. Similar to the master cylinders that have a feedback plate that reduces speed of the movement. This can be problematic as reduce speed can cause the clutch to not fully disengage and engage as quickly as you are shifting. This can lead to prematurely worn synchros or gears. 

Applications:
  • 02-06 RSX DC5
  • 02-05 Civic Si (EP3)
  • 06-11 Civic Si FG2 / FA5
  • 12-15 Civic Si (Requires switching clevis)
  • 04-08 TSX CL
  • LHD Vehicles only. 
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 87845725586

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Reviewed in the United States on February 12, 2026
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Paul Coverdale
Chelsea, US
★★★★★ 5
Nice casual button down shirt
Size: X-Large, Color: Light Grey
Fabric is a heavier weight than I expected. Appears to be made well. Not something I’d wear into the office but it’s a solid choice for casual wear.
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Reviewed in the United States on April 26, 2026
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Jay
Charlottesville, US
★★★★★ 4
Nice, but fit is little tight
Size: X-Large, Color: Pale Pink
Good quality but a little tight. The collar needs to be better
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SouthTexas
Alexandria, US
★★★★★ 5
Exactly what I needed-a good button down inexpensive shirt
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Reviewed in the United States on May 18, 2026

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