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Manley single piston for 2004+ Subaru WRX STi (EJ257) is listed as a de-stroked, 75mm piston with 100mm stroke and +0.5mm bore, producing an 8.5:1 dish geometry for that application. Backed by Manley’s Platinum Series pedigree, the offering emphasizes forged construction and precision profiles for demanding engine builds. It is sold as a single replacement piston for the specified EJ257 configuration.
Manley 04+ Subaru WRX STi (EJ257) 75mm DE-STROKED 100mm +.5mm Bore 8.5:1 Dish Piston (SINGLE Piston)
