Just out of curiousity, on Quadratec's website they list a Rock-It Max Flow intake for '97-02 TJ's (tube and filter) for $149 and the regular hi-flow intake for the same year range for $139. They list a different tube (just the tube) for '05s for $114 and the filter would be $50-60 on top of that depending on which one you get. They don't even mention anything about the '06 model year TJ. So I'm just wondering, what difference is there between an '02 intake tube and an '05 intake tube? I can't imagine that it would take much work to make the '02 tube work on an '05 (or '06) 4.0. Or am I wrong?