Mazda FD3S Baffled Oil Filler Neck - AluminiumVinny Fab FD3S RX 7 Rear Exit Oil Filler Neck (with Billet Oil Cap) Designed to replace the factory oil filler neck, this upgraded Vinny Fab design relocates the outlet to the rear for easier access, a tidier engine bay, and superior oil control under boost. Each neck features our custom CNC machined billet aluminium flange, precisely engineered with internal baffling to stop excess blow by from escaping through the filler neck a common issue in high

Nissan RB20 Engines

Regulator Type: Internal

Parts from Franklin Engineering Ltd

and the FC adaptor is 60mm

Vinny Fab mounting brackets & hardware

Please note that some aftermarket intake manifolds have different sized machining and often a sharp edge which can make the o-rings tight and harder to install

This redesigned Vinny Fab Upper Water Neck provides the extra clearance your setup needs — no compromises

🔩 Vibration-Control Tab: Designed to bend slightly to remove unwanted resonance

and factory water hardlines

1/4NPT blanking plug for un-used port and o-rings

our joiners are crucial components for safety and performance

Steel 56mm alternator pulley with 17mm bore