Congratulations to Zachery Qualls for running a World Fastest 1/4 mile time in his 2021 Jeep 6.4. His best time was a [email protected] MPH which makes his jeep the fastest to date. This was done on a 93 Octane Performance custom tuning with SSi Performance using DiabloSport CMR custom tuning software. Now its time to make him a race tune. Stay Tuned! Click on the video to watch with youtub...