Hey, I just bought a '98 24 valve with a 5 speed, 4x4, dually, extended cab. I will be using it as a service rig on the farm, and maybe to tow some pieces of equipment around. Bone stock for now, but definitely a 4" flow pro or some other low restriction exhaust system in the near future. Any way, I was wondering what chip would give me a few more horses and a lot more torque for what Im doing. I have no idea since Im mainly a 12 valve man, but Ive heard of DP Tuner and I dont think I want a smarty, but Im open to suggestions. Thanks.