Thread: N54 vs N55
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      08-07-2014, 01:59 PM   #110
fcman
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Originally Posted by highbrowed View Post
Looks like BMW used forged pistons on the n54 in E9x, but I can't find any info about the E82 n54:

http://www.e90post.com/forums/showthread.php?t=541474
Wat, the very first post says they are cast via email from Mahle themselves, VAC (in that very thread) and BMS have also confirmed they are cast.
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