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The Supertech piston set for BMW S54B32 (E46) includes six pistons at 87.5mm (+0.5) bore with a 32mm crown height and a 12.5:1 compression ratio; rings are excluded. This six‑piston kit is intended for S54B32 rebuilds or high‑compression restorations where exact oversize and crown dimensions are required to reproduce factory or specified combustion chamber characteristics.
Supertech BMW S54B32 E46 87.5mm (+0.5) 32mm CH 12.5:1 CR Piston - Set of 6 (Excl Rings)
