SKU: 77090678458

K-Tuned Clutch Master Cylinder Upgrade Kit - RSX/TSX/02-15 Civic Si

Sale price$98.33 Regular price$109.25
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Ships within 48 hours · Estimated delivery Jul 26 - Jul 31

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Description

K-Tuned Clutch Master Cylinder Upgrade Kit - RSX/TSX/02-15 Civic SiThe 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

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 2002-2006 RSX and the 2006-2011 8th Gen Civic Si 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.

Compatible Vehicle Applications:

  • 02-05 Civic Si
  • 06-11 Civic Si
  • 12-15 Civic Si
  • 02-06 RSX (all)
  • 04-08 TSX
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: 77090678458

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matthew allen
Pawtucket, US
★★★★★ 5
They fit well
Color: Jacquard Black, Size: Medium
Fits well, cool and great looking
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Reviewed in the United States on April 16, 2026
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Joe
Louisville, US
★★★★★ 5
Super lightweight and comfortable.
Color: Black, Size: XX-Large
Fits great! Well made!! Super light weight and almost sheer fabric! Stretch and comfort for golf and looks great with dress pants!
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Reviewed in the United States on June 6, 2026
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jimmy
Whiting, US
★★★★★ 5
Comfortable shirt
Color: Teal02, Size: XX-Large
A great feel , so comfortable to wear!!!
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Reviewed in the United States on April 18, 2026
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Mike Mayor
Phoenix, US
★★★★★ 1
Won’t last no durability
Color: Teal01, Size: XX-Large
Terrible shirt , it fades noticeably in different areas after 3rd wash they are unwearable now very disappointing
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Reviewed in the United States on April 25, 2026
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Mark
Charlottesville, US
★★★★★ 3
Nice fit- No help for “man boobs or belly”
Color: Blue, Size: XX-Large
The shirt is beautiful and nicely made. Fabric is nice, but thin. However, the claims about “belly fat” and “man boobs” are just plain not true. Fabric is stretch and thin. This actually exaggerates those things if the shirt is snug at all. Size does run true.
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Reviewed in the United States on September 7, 2025

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