JE-Pistons Set BMW E46 M3 & Z4M – S54

JE forged piston set to suit E46 M3 & Z4M S54

Original specification: 11.5:1 and 87mm.

These pistons are made from JE’s 2618 T6 high tensile forged aluminium and designed with their new asymmetrical skirt technology for a more rigid and durable platform. Also featuring JE’s new Smooth Finished Crown process for excellent flame travel. All piston sets include straight wall carbon steel gudgeon pins, clips and piston rings.

• 12.5:1 compression ratio recommended for race fuel only
• 9.0:1 ideal for turbocharged or supercharged applications

Compression ratios based on .040″ head gasket (OE specification)