Originally Posted by dsbj
Why is that?
BTW, I just smog'ed my 2007 and no one said anything about the DCI's.
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