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Message: <blockquote data-quote="astroboy" data-source="post: 643312" data-attributes="member: 4527">Later generation e60 and e90 2.5L all using the same N52B25 magnesium engine, same ZF 6HP19 gearbox. Unless your mech is refering to 10 years old e60 525i which is still using the old school M54B25 aluminum block engine which is 10% less power, 5% less fuel efficient. If you want to go along that path, might as well get an E34 or E30, confirm less problem. :4:Look at it this way, e90 is old school compare to F30.. so how old school you want to be? :4:<img src="http://cdn.oldschoolvalue.com/blog/wp-content/uploads/old_school.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></blockquote>