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Honda Civic Si Battery Sizes by Year

Engine-specific battery groups by model year.

Year	Engine / groups
2022	L15CA: 51R-2
2020	L15BA Turbo: 51R-2
2019	L15BA Turbo: 51R-2

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Spec Sizes

Vehicle sizes and specifications — tires, wipers, batteries, and key fitment measurements.

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