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      02-17-2006, 07:18 PM   #1
luxman999
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Drives: E90 335i
Join Date: Jul 2005
Location: Bay Area, CA

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Why BMW needs turbo for E54 engine to acheive 306hp?

If I'm not mistaken, BMW's new E54 3.5L turbo charged engine is rated for 306hp. If Lexus IS350's 3.5L naturally aspirated engine can produce identical 306hp without any turbo, why the heck BMW needs turbo charger in their new 3.5L engine to achieve 306hp??? If Lexus added turbo charger to their 3.5L engine, their output would be close to or even over 400hp. Am I missing something here???