Seiken FR FD01-41-990B Clutch Master Cylinder Mazda RX-7 FD3S DU0011R Although blow-by is not completely

Although blow-by is not completely eliminated it is kept to an acceptable limit

By smoothing out the exhaust flow

The ExV was designed to cater exclusively to US market vehicles

and even the oil drain kit

higher vacuum

Seiken FR FD01-41-990B Clutch Master Cylinder Mazda RX-7 FD3S DU0011R Although blow-by is not completelySeiken FD01 41 990B Clutch Master Cylinder for Mazda RX 7 FD3S. An old and bad master cylinder can cause inconsistent feedback and mis shifts. Replace and bleed the hydraulic to ensure no air is in the system. Vehicle Fitments: Year Make Model Submodel 1993 1995 Mazda RX 7 Base, Touring 1993 Mazda RX 7 R1 1994 1995 Mazda RX 7 R2