I just got a 2002 Ram 1500 5.9 4x4 Quad cab. I am looking to put an exhaust system. However, I am not sure on which system to go with? Some say that Flowmaster is great but at 65 mph the noise can be very annoying. I hear Gibson and Borla is great but I have not heard enough about them. I just want something that sounds good and is great on the gas milage but not over bearing in noise. Can you help a brother out???