Hybrid Racing Clutch Master Cylinder Upgrade (17-21 Civic Type-R)

The Hybrid Racing kit for FK8 is a straightforward bolt-on part that includes an OE Nissin CMC, a stainless braided clutch line with fittings, and stand-offs for mounting the clutch line. No additional replacement parts or parts from the factory CMC or SLV are required. The kit has the necessary grease to lubricate the clevis pin and prevent NVH (noise, vibration, and harshness).

The OE Nissin CMC used in the kit has an aluminum piston body compared to the plastic assembly in older models. The plastic assembly has the potential to deflect in racing conditions or by using a stronger pressure plate. 

In 2002, Honda introduced a damper and delay valve in the clutch hydraulic system for US models with K-series powertrains. The damper in the CMC body casting, identified by the external triangular section, reduces vibrations transmitted to the clutch pedal, minimizing cabin NVH and vehicle feedback.

We remove this damper to enhance the connection to the powertrain, resulting in increased pedal feedback and consistency at higher engine speeds and loads. This more direct connection is preferred by drivers and racers alike. 

Upgrading to our CMC kit will improve the pedal feel. However, it can make the entire system slightly more noisy under normal conditions. 

Fitment:

Detailed Fitment:

• Type R 2017-2021

Technical details:

• Master Cylinder with clevis installed and pre-calibrated to OE FK8 specs. 

• Plated steel clevis 

• Clutchline: The clutch line in the kit replaces hard and soft lines between the master cylinder and the slave cylinder. Included are mounting hardware for the factory transmission point and two standoff clips for mounting the line to Driver Side frame rail. 

• Spacer: the studs on the HR CMC have extended shoulders, so spacers are included to ensure thread engagement. 

• A neoprene firewall seal is included to prevent water and debris entering the cabin. 

• A 1oz packet of PTFE grease will be used on the pin that holds the clevis to the clutch pedal. The grease will reduce NVH from being produced at the pedal assembly.  

Included:

• x1 Nissin master cylinder pre-calibrated with a custom steel clevis calibrated to OE FK8 specs. 

• x1 Clutchline with mounting brackets 

• x2 Stud spacers. 

• x1 Neoprene firewall seal 

• A 1oz packet of PTFE grease.  

Install Guide:

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