Yes, you cannot get to the filter from above. I am not sure if you can get it out from below without taking off the wheel and removing some of the wheel liner. However, Injen recommends cleaning only every 25,000 miles. So for me that means each spring when I get the car ready after winter storage, to inspect things, do some more cleaning etc. I will take the wheel liner off and clean the filter. The filter is good for 4 years or 100,000 miles. Hope this helps. And thanks for the compliment on the pictures. For a full list of what I have done to date, check out this thread
http://www.camaro5.com/forums/showth...58#post1730258