this is the same issue i have had for three seasons.I have a very annoying rattling noise comming from what seems to be the steering column, it seems to happen on and off acceleration or around 5000 rpm. I took sled apart last year to check out flex pipes and exaust donuts, checked out heat shield ,replaced donuts and to no avail, have same issue and maybe getting worse. Is anyone else having this issue and if so let me know what you found. Thank's