Drag Racing Pro Tunes Lite

此版本中的新功能：for the fastest tunes and a complete tuning guide, upgrade to Pro Tunes. for more free tunes check out our youtube channel. http://www.youtube.com/user/DragRacingProTunes *added lvl 6 Dodge viper 1/4 *added lvl 3 Camaro ZL1 1/2 *added lvl 4 Dodge SRT8 1/2 *fixed bugs