i have an 05 with a 48re transmission. i currently have added a industrial injection 62/12 turbo,volant intake,mrbp exaust,edge hot juice and bully dog crazy larry. so its time to upgrade my transmission. in the future i want to add a new intercooler,an axaust manifold,fass system and water meth injection. i need advice in the transmission dept. do i just add a torque converter or do a full billet rans. how much are these choices installed. i have up to 7 grand but don't want to buy something i don't need. thanks for the advice