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JE Ultra Series forged pistons for the Nissan SR Series are a set of four 86mm bore flat-top pistons with 10.0:1 compression, intended for higher compression builds. Ultra Series leverages JE’s Aligned Grain Flow forging, thermal barrier crown and skirt coatings, lateral gas ports and enhanced pin oiling, plus thick-wall wrist pins—engineered to maintain ring seal and strength under demanding conditions.
JE Pistons Ultra Series Nissan SR20DET 86mm Bore 10.0:1 CR Set of 4 Pistons
