Hey guys im new here, just bougt an 04 f250 crew cab 4x4 with the 6.0L and i was wondering if you guys think stacks would be a good mod? i love the looks of them and have read that they help with torque and mpg's. right now it has the Banks power big hoss kit in it and 4 inch exhaust. this is really just a prefrence question. what would you all do?!

: its hard to say if the mpg increased, its so hard to not push down the "noisy" pedal hehe, but it did increase power abit, 4" would have probly been abit better yet!