I have the same problem with my new cultus vxl.
If anyone has a solution plz let me know.
Checked from 2 different showrooms and had 3.test drives with their mechanic. All didn't have a clue what the problem was. One said use good fuel.
One Said its probably air intake noise
One said its something else.
My point is... If its air intake noise. Why does it stop after 100km/hr
If anyone has a solution plz let me know.