My front right side tie rod is hitting the top of the air duct just in front of the round notch. It is making a rubbing noise (nonmetalic..it does sound like a plastic rub) when I go over rough roads. The left side is fine. I can clearly see where it is hitting and I could notch it out, but I was wondering if there is a suspension issue here. It is a 2000 Boxster with only 30K miles. The strut looks fine. The car rides great, good tires, tracks fine. Any ideas?