Not sure which 2005 BMW X5 Air Intake Systems are right for you? We have over 135 customer reviews, with an average rating of 4.5, to help you find exactly what you're looking for. Tom V from Livonia, MI said, "Was slightly skeptical just how pleased I would be following the installation. By the way, the installation was fairly straightforward and only slightly intuitive.Now that I have driven with the new intake for a couple of weeks, I can relate the following: inproved throttle response, a noticeable improvement in accelleration, and best of all - the much improved sound from this mid range V8 from under the hood. Great balance between sophistication and domination.Try it, you'll like it."