Intake Manifold Adaptor RX7 Series 6 to Series 4 or 5 13B

Intake manifold adaptor for Mazda RX7 13B engines 

These adaptors enable you to fit a Series 6 upper intake manifold to a Series 4 or Series 5 lower intake manifold 

Franklin Performance used the CAD design software to port match the upper and lower flanges for optimal air flow, and incorporated eccentric fasteners to compensate for the different bolt pattern of the two manifolds 

The manifold adaptor is manufactured from 6061-T6 aluminium and black anodised for light weight, great looks and corrosion resistance 

It also features individual o-ring seals around each port for superior reusable sealing compared to factory paper gaskets. The manifold adaptor is supplied with all the high quality Viton o-rings and fasteners rquired for installation 

All machined components are CNC machined at the Franklin Performance factory in Napier, New Zealand