For use on high bite/high grip surfaces. Dark Horse Tonic (DH) is a specialty Tonic for *specialty applications. DH adds grip to tires without excessive softening allowing the racer to use more aggressive chassis setups while combating the dreaded “traction roll” on high bite/high grip surfaces. Often, a more aggressive setup equals faster corner speed and lower lap times.

To use, apply Dark Horse Tonic to tires 5-20 minutes before the next run. More applications equals better performance.

If tire softening is required, we recommend Papa Willy’s Tire Tenderizer prior to using Dark Horse.

*DH is not for every application.