[heavy-chevy]

actually in the bigger Kodiak's, i think 4500 and up(maybe 5500 not sure?) you can get a 7.8? (not sure on size) i6 dmax that does have more power, but im sure still slower due to weight. propain doesn't seem worth while. there are other cheaper ways to try to squeeze milage out of it first, like intake, exhaust, tuner, more boost ect, and those mods actualy give you some more power. propain doesn't add too much performance.