Product detailed specification

Bore size

87.50mm

Stroke

91.00mm

JE Pistons compression ratio (CR)

11.5:1

OEM compression ratio (CR)

11.3:1

Dome volume (CC)

-13.80cm3

Compression height (CH)

32.30mm

Pin diameter

21mm

Features

Accepts Turbo and Nitrous; FSR skirt

Fits for

BMW M3 E46 - 3.2 S54B32

JE's patented Perfect Skirt coating makes piston slap, false knock, and cold-start wear a thing of the past.
For the first time ever, 2618-alloy pistons can be installed with piston-to-wall clearances near that of an OEM piston!