JE Pistons BMW B58B30 Ultra Series Piston Set - 83mm Bore

Ultra Series forged pistons from JE are the industry’s strongest, most fully featured pistons available off the shelf. Offered for BMW B58 Engines. Ultra Series Pistons feature JE’s proprietary Aligned Grain Flow forging technology providing next-level tensile strength ideal for the extreme cylinder pressures of power adder engine builds. Equipped with the following custom level features