DS through the first right corner. You will not be able to get this corner clean, but will bounce off the left wall

In tunnel drive as far right as you can, to setup for the next left

after jump out of the tunnel use Tap DS for the right corner

Like at the end of OS, use the left side walk for a small boost after the long straight

Tap DS for the next right, then stay left entering the tunnel

after tunnel Tap DS the next left and Micro DS the right corner up the airport

stay on the left lane when road splits

DS the last corner before Start/Finish