after some spins it gets smoother with the starting , i hope it works well. i think my mic from my mobile is terrible cause you cant here the real bass rumble of my exhausts
https://www.youtube.com/watch?v=GWj-v-nneks
https://www.youtube.com/watch?v=FjuOGXgJdnE
https://www.youtube.com/watch?v=GWj-v-nneks
https://www.youtube.com/watch?v=FjuOGXgJdnE