yes i'm going with stacks because when i'm blowing tons of black smoke i want everyone to see where its comeing from hahaha...and i like stacks it something different and yall no me my trucks are all one of a kind i got to bne different then everone else i CANNOT have a truck that looks like everyone elses..not gonna happen...also i'm very happy witht he fuel mileage 525 miles to the tank yee haww