my brother in law has a 02 dmax and the injectors are going bad. he is wanting to put some stuff on it to try to outrun me not happening but anyway he wants big injectors and a module but i have ben told that big injectors is pretty much pointless in dmax unless your wanting big big power. so please help. this truck is not a haul *** machine he just wants it to run good and of course roll some coal. thanks in advance