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The HKS BCD Forged Piston Kit for the G16E engine, STEP3 AA 87.5, supplies forged pistons sized at 87.5mm for high-strength engine builds. As a factory-style kit within HKS's STEP3 line, it is intended for engines requiring forged internals to support elevated loads and durability in modified applications. This pistons-only kit is identified by its G16E STEP3 AA designation and matches the specified bore size; installation specifics depend on engine configuration and supporting components.
HKS BCD PISTON KIT G16E STEP3 AA 87.5
