Skidmarks cause game to stutter and freeze

On two of the maps I installed today (Both racetracks, tried a few offroad maps with no issues) when the car skids from hitting the brakes too hard, or sliding the FPS drops to 75-7, or even 0 uni the car stops skidding sometimes freezing for up to 15 seconds. So far I've only seen it on two maps, I tried the 12km oval and slid into a barrier without an issue, but for some reason on two racetracks it stutters.

 

There are literally hundreds of threads about this, take a look at the search bar sometime. A fix is on this page, scroll down a tad. http://www.beamng.com/threads/7868-Racing-Pack-5-cars-2-maps?highlight=racing+pack