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      04-16-2013, 10:42 PM   #16
Agent Smith
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Drives: 2016 i8
Join Date: Jan 2011
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2016 BMW i8  [5.00]
Originally Posted by !LEFTCOAST! View Post
I really don't know but it states it on the front pages of the installation instructions & on Injen's website. Something about they're considered to be LEV2, SULEV with engine test groups #'s 7bmxv03.0n51 & 8bmxv03.0n51
I always found this exclusion to be confusing, but this is how I read it:

LEV2 or LEV II is the name of the emissions program, or standard. LEV is the rating, along with ULEV and SULEV. BMW 335i's meet LEV2 LEV standards. I believe this comment/exclusion was just included on every 1-series/3-series in this group of testing, and is simply stating that the N51 engine (which is a LEV2 SULEV rated system) is excluded. As far as I can tell, these intakes are CARB certified for N54 engines.

My take anyways.