It's the same, good old Superman Mod, but I put the speed value to 20000 (instead of the usual 3000!!!). If you want to adapt the speed for yourself, extract this file to dropzone and you can open it by using Gibbed bin2xml, opening it in .xml format and search for 20000. It will bring you to the right line to change for switching your flying speed.
Please note that it gets quite tricky at this speed, it seems bug if you fly too fast for too long (in which case you'll find yourself at the bottom of the ocean). You'll outfly anything, now, though. Even the warbird or the Eclipse and Cassius planes...