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JE Ultra Series forged pistons for BMW N55B30 (3.307" bore) deliver a fully featured aftermarket piston designed for high-horsepower builds. JE’s Aligned Grain Flow forging maximizes tensile strength for extreme cylinder pressures, while thermal barrier crown coating reduces piston crown temperatures and improves exhaust scavenging. The Ultra Series includes skirt coating to lower friction and noise, optimized pin oiling, lateral gas ports for top-ring seal retention, and high-strength wrist pins. These pistons are made 100% in the USA for demanding applications.
JE Pistons BMW N54B30 Ultra Series Set of 6 Pistons Inv Dome/Dish 3.307 Bore 1.275 CD 0.866 Dia
