awsome! Rusty is changing all of his trucks overto AERO to save gas and that for people own own fleets of trucks. They need to get AERO! He said that he is using them to save money on gas.....Rusty again said that now everyone in DP class of Rolex Series now runs AERO. Also, showed a NASCAR Bushe car that ran in Mexico. Ran AERO mufflers because Mexico mandates mufflers........ALso, Rusty said that it takes only 45 minutes to install the Deisel Kit.