I have had this problem with a hid kit thought it was the bulbs so changed them but still had the same problem found out it was the ballast causing the problem so changed and problem was solved.
I got kw v1s and I had something like that was a funny rotation noise coming from front but only when cold drive down the road 100metres and goes away. Sent bk to me and they reckon there was no issue with them they said it will make a sligh noise when cold as the oil in the shock is cold and...