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		M3Post - BMW M3 Forum > E90/E92 M3 Technical Topics > Engine, Transmission, Exhaust, Drivetrain, ECU Software Modifications
Need Balancing?

04-12-2026, 02:00 PM	#1
charliev68 Second Lieutenant 370 Rep 366 Posts Drives: bmw m3 Join Date: Feb 2020 Location: CA iTrader: (1)	Need Balancing? Mahle PowerPak Pistons weight is heavier than OEM. The piston itself is the same weight, its wrist pin is 18 grams heavier. I’m saving some weight by using the VAC Rod bolts instead of the OEM but there is still a weight difference over OEM overall. Does the rotating assembly really need re balancing? I’ve seen different opinions. Attached Images Last edited by charliev68; 04-12-2026 at 02:01 PM..
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