Re: Stacks on a 6.7?
you can do stacks but with dpf you wont hear a sound difference from stock and you will basiclly allow water to deposit in the dpf thereby ruining it.
you have to measure to see if the emmissions junk is not already past where u could 45* up thru the bed floor
either wait for a mbrp dpf back stack kit or wait for a emissions delete with tuning then get a kit made. as for the 2500 that price is high but its probably just a quote high because theyve never done one yet