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The Wiseco shelf-stock piston kit for BMW 2.5 12V M20B25 is a dish-top replacement set specified with an 8.8:1 compression ratio and an 84.5mm bore. Offered as a direct rebuild option, these pistons match the M20B25's design intent at the listed bore and compression, making them suitable for stock-dimension engine rebuilds or repairs where the 84.5mm bore size and 8.8:1 CR are required.
Wiseco BMW 2.5 12V M20B25 Dish 8.8:1 CR 84.5MM Bore Piston Shelf Stock Kit
