It's your clutch master cylinder ... they may not have put a new one in when you got the CSC replaced. But even if they did, the seals are easily compromised by contaminants in the system leading to the mushy pedal symptom. I seem to be one of the more extreme cases, but I've replaced my master four times now in 80K miles
RJM Performance just came out with the first heavy duty aftermarket CMC for the Z. I just installed it last week. His clutch pedal assembly is awesome also.
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2011 370Z 6MT Sport Gun Metallic | ARC | CJM | Ecutek | FI | Fujimura | R2C | SPL | Stillen | TWM | Z1 | ZSpeed |
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