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Subaru WRX (2022+) Ignition FAQ's

Please read our FAQs page to find out more.

What spark plugs work well on a tuned FA24 WRX?

A one‑step‑colder iridium plug is common at higher cylinder pressures. Gap to your tuner’s spec to resist blowout under boost.

Are coil upgrades worth it on the VB?

Fresh, high‑quality coils improve spark stability as load rises. Pair with correct plugs and dwell strategy in your calibration.

Why would my WRX misfire only at high load?

Often plug gap, aging plugs, marginal coils, or a small charge‑pipe leak. Verify fuel quality and tune health before pushing harder.