Part number 297119.

JE Pistons forged piston kit (6 pcs.) CR 12.5:1 87.00mm (STD) with Perfect Skirt coating.

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!