err aren't there two versions of the Anniversary splitter?
one for the petrol, that takes air in via the bumper grill and one for the derv that takes in in via the splitter to accommodate for the FMIC, my ETKA is at home so can't check.
whilst either splitter will fit, when you come to fit it, you'll find air scoop that runs from your current splitter to the passenger side engine cover, this will either fit with the new splitter or not.