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Mishimoto ignition coil for 2011–2015 BMW 550i 4.4L supplies a direct-fit replacement to restore consistent spark and smoother running. Weak ignition can produce misfiring, rough idling, reduced fuel economy, and catalytic converter damage; this coil refreshes ignition delivery to address those issues. Built to meet or exceed OEM BMW performance standards, it improves startup and idle when paired with new spark plugs and is covered by Mishimoto’s Lifetime Warranty.
Mishimoto 11-15 BMW 550i 4.4L Ignition Coil - 8-Pack
