The 2021 Ultimate Callout Challenge is May 21st - 23rd, 2021
READ MORE LARGEST DIESEL EVENT OF 2021 Three Days of Non-Stop Diesel Action in Brownsburg, Indiana. Come See the Best Compete in Drag Racing, Dynoing, and Sled Pulling. READ MORE SEE THE BEST COMPETE Only at the 2021 Ultimate Callout Challenge Can You See All the Best Competitors in the Diesel Industry in One Location with One Winner That Leaves with the Title Ultimate Callout Challenge Champion READ MORE