Mazda MX5 Mk1 1.6 Billet High Capacity Fuel Rail 1989–1993 Performance Upgrade

High-Capacity Fuel Rail for Mazda MX5/Miata 1.6 (1989–1993)

This high-capacity fuel rail is designed for the 1.6 MX5/Miata produced from 1989 to 1993, and it may also fit some later models.

It is a direct-fit upgrade, compatible with standard injectors, the OE fuel hose, and the original fuel pressure regulator—no additional parts required.

When upgrading, the rail supports AN-6 fuel lines and allows installation of an aftermarket fuel pressure regulator via an adapter. Larger injectors can also be fitted as long as they match the physical size of the original units.

The increased capacity ensures consistent fuel delivery, even during high-demand periods, reducing the risk of injector starvation on modified engines.

A 1/4″ NPT port at the end of the rail allows for optional installation of a fuel pressure gauge sensor.

Manufactured from billet 6063 aluminium and anodized for corrosion resistance, this fuel rail not only improves performance but also adds a clean, high-quality look to your engine bay. Installing it on a standard car will not affect fuel consumption, but it’s ready for future performance upgrades.