i am currently in afghanistan and when i get back plan on starting my project of putting a duramax in my s10 but i have and 02 that i will use to pull it to the track is there any mods i can do that will help keep my o2 reliable i currently have afe intake efi and 5in exhaust and it is my daily driver i may run at the truck every now and then but dont want to dump all my money in to it when i have the s10 any suggestions are appriciated