Of course it's true....why would anyone here make such things up?
But the problems are not universal - I don't have giggly headlights but do have a distorted windshield - my second one! Others have the headlight issue but not the windshield. My dealer sent my old windshield back to GM for evaluation....we'll see what happens.
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2004 GS GTP/WS6
3.4" puley, BIG conical K&N filter
14.22@96.5 mph