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2016–2025 Mazda MX-5 Miata Fuel System FAQ's

Please read our FAQs page to find out more.

Do I need larger injectors for bolt‑on NA power on an ND?

Not typically. Turbo/supercharger or E blends require higher‑flow injectors/pumps—size with headroom and tune properly to maintain rail pressure.

Is a flex‑fuel kit worth it on the ND?

Yes—an ethanol content sensor enables dynamic timing and fueling, improving knock resistance and temperature control when tuned accordingly.

How do I avoid fuel starvation in long sweepers?

Keep the tank above half during sessions; baffling or a surge solution helps at higher grip. Log fuel pressure to confirm stability.