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Preguntas frecuentes sobre 2014–2018 BMW M3 Ignition

Consulta nuestra página de preguntas frecuentes para obtener más información.

What spark plug heat range should I run on a tuned S55?

One step colder than stock is common with increased boost. Tighter gaps help prevent blowout at high cylinder pressure—confirm with your tuner.

Are coil upgrades helpful on the S55?

High‑output coils improve spark energy and reduce misfire as boost rises. Pair with quality plugs and verify dwell in your tune.

How often should I replace plugs if I track the car?

Inspect after events and replace as needed. Sustained high heat shortens plug life; keep a spare set gapped for your setup.