The Mahle MS piston set for EJ25 engines is a set of four pistons specified at 99.50mm bore with 79.0mm stroke, 130.4–130.5mm rod length and a 23mm wrist pin. The set lists a -22cc (or -19.3cc in extended detail), a weight near 398g, and an 8.5:1 compression ratio; it’s intended as a matched four-cylinder piston set for EJ25 applications requiring these dimensions.
Mahle MS Piston Set EJ25 99.50mm Bore 79.0mm Stroke 130.4mm Rod 23mm Pin -22cc 8.5 CR Set of 4