you wont break nothing w/ a 4x4 launch, he definately will. I personally think that is the only way you are going to beat him is if you launch in 4hi. Tuned or chipped dmax's are pretty peppy and they are light. Another advantage you could have on him is how the allison acts. They like to fumble through the gears on hard tuned runs, even do it stock if they have been putting around town then you floor it. i think you are going to need some hats