Developed by BimmerHeads in collaboration with Mahle Motorsport, this PowerPak piston set is engineered specifically for the BMW M20B27. Built from Mahle’s proprietary M142 alloy, these pistons deliver OE-like reliability without the longevity trade-offs of a typical forged piston.
Fits: BMW M20B27 engines with 200 or 731 cylinder heads
84.5mm bore
9:1 compression ratio
130mm connecting rod length
81mm stroke
Mahle Motorsport M142 alloy
Phosphate coating
Grafal anti-friction piston skirt coating
Lightweight slipper-skirt forgings
High-strength, lightweight German wrist pins
Race-proven round-wire wrist pin locks
Low-drag piston ring pack
This set gives 325e owners a purpose-built piston option for their M20B27 rebuild.
