I have a 2002 Ram 2500 5.9L 360. Im not sure what the next step performance wise is for it. I have done the 1.7rr, Mopar intake manifold, Jba shorty headers to a 2.5in y pipe to a borla single in dual out muffler, electric fans, MSD 6al with a blaster ss coil, round air cleaner, fastman TB and a hemi fever tune. The tranny has a new valve body, HD shift servos and bands. The truck came with 4.10s from the factory so going to a 4.56 or 4.88 gear setup would kill highway driving.