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Mahle MS piston set for Subaru WRX 2.5L is a four‑piece piston kit specified at 99.50mm bore with 79.0mm stroke and a 23mm wrist pin. These pistons are sized at -14cc chamber displacement to yield a 9.0:1 compression ratio; each piston is listed at approximately 403g. Supplied as a set of four for a 2.5L WRX application.
Mahle MS Piston Set Subaru WRX 2.5L 99.5mm Bore 79mm Stroke Stock Rod 23mm Pin -14cc 9.0 CR Set of 4
