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2023–2025 Acura Integra Type S Fuel System FAQ's

Please read our FAQs page to find out more.

When do I need larger injectors on the Type S?

Past basic bolt‑ons or on ethanol blends, larger injectors prevent maxed duty cycle. Size for future goals and pair with an appropriate tune.

Is a low‑pressure pump or HPFP upgrade required for E85?

E85 needs more volume. Many builds require an upgraded in‑tank pump and potentially a higher‑flow HPFP to maintain pressure under boost.

Do I need a return‑style fuel system at higher power?

A return system with an adjustable FPR stabilizes rail pressure and simplifies tuning at elevated flow rates, especially on ethanol.