Gray Vs Blue slave cylinders and cylinder bore size

[soccermania688]

Just put in a new blue slave. Had a gray that started leaking. Didn't notice a difference.

[93stealthman]

Id be interested to know what the difference is on the na and turbo master cylinder volume output. After i did my awd swap i just used the grey slave cause it was there along with the na master. kinda prefer a stiff clutch. I too agree the discernible difference between the two is prob. marginal, my experience any time i mess with the clutch the pedal is so soft compared to before (new grease where the old was displaced maybe?)