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Hybrid Racing Clutch Master Cylinder Upgrade Kit - 02-06 RSX / 06-15 Civic Si

Factory clutch master cylinders in the 06-15 Civics are known to be rather unreliable and because of their poor design and quality, it can lead to premature failures of critical parts throughout the drivetrain.  High RPM grinds are mostly attributed to the OE master cylinders inability to transfer fluid effectively to the slave cylinder, thus causing grinding and rasping of the gears and synchros since the clutch disk hasn’t fully disengaged.

Upgrading the clutch master cylinder and clutch line to this Hybrid Racing CMC  kit changes the system to an older, more direct and efficient system. This improvement allows the driver to feel a more consistent and direct clutch pedal which also improves shifting at high rpms.

Read through the HR instructions to get an idea of what it takes to get your gear change issues fixed once and for all. Also, consider upgrading your shifter cables or cable bushings for an even more direct and crisp gear change.

This kit will not fix a pre-broken or damaged transmission.


  • Helps to eliminate grinds during hard shifts
  • OEM Honda master cylinder
  • Includes stainless steel braided clutch line
  • Improves the feel of gear changes

  Vehicle applications: 02-06 RSX, 06-11 Civic Si, 12-15 Civic Si 

Hybrid Racing Clutch Master Cylinder Upgrade Kit - 02-06 RSX / 06-15 Civic Si

Regular price Sale $166.24 Sale price MSRP $174.99
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Free standard shipping applies to this item within the continental United States. Orders shipped to Alaska, Hawaii, Virgin Islands, Canada, Puerto Rico, Guam, and PO/APO/FPO boxes are subject to additional shipping charges.
Ships: 1-5 business days
This is an estimated ship date once your order is placed from JHPUSA. Ship dates do not include weekends and holidays.
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Cancer & Reproductive Harm
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