This evening a driver was headed east on FM 1488 at 9 pm. Just as he and several cars pulled away from the light just before I-45 , 2 motorcycles passed between the vehicles on the lane divider at a high rate of speed. Both appeared to be trying stunts. The stunt almost went deadly as one driver in a vehicle which was passed panicked and slammed on her brakes causing the vehicle behind her to swerve to the center lane almost striking another vehicle head-on. The riders then turned onto I-45 at a high rate of speed.