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Mazda FD3S RX-7 Oil Filler Neck Flange — precision CNC-machined from 12 mm billet aluminium.
Designed with an internal baffle system to reduce excess blow-by and improve crankcase ventilation under high-performance conditions.
Engineered to suit 38 mm – 44 mm tubing, this flange is ideal for custom catch-can setups, breather systems, or aftermarket filler neck assemblies.
Comes with viton o ring to suit
Ships within 48 hours · Estimated delivery Jun 24 - Jun 29
US$40
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