This one is pretty simple. Only hard thing is to cancel your speed break at the right time so you can short hop over the speed strips at the end of the cave.
0:20:15
1/6
09-06-09
http://www.youtube.com/watch?v=5QIqbHsRvMM
2/6
09-16-09
0:19:48
1/6
09-16-09
:D
0:19:03
1/6
09-16-09
So close to sub 19 D: If I do it I will record it :D