If your oil is going black quickly, there is most likely lots of build up dirt in the system. Try bleeding it until it gets clear. Also, your situation sounds more hardware. Contact Zspeed and ask if the part should sound like that. I don't think it should... but then again, I didn't install my unit lol
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12 370Z- Touring- Sport- 6MT- 
Z1 Anti Starv, 34R Setrab Kit, 20/25MM | Konig 18x10.5 W/ Hankook RS4 | PowerStop TrackSpec Pads | TTP Single Exit , & Swift Springs | Previously Owned: 18 Q50- 480RWHP- 12.2 @118- Sold, 92 240SX Built SR
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