Im doing a blowthrough in my Dodge right now. Ive used a number of different under seat setups and like someone said earlier, i was always craving more. So finally i broke down and decided on the blowthrough. I ended up going with a 4th order bandpass enclosure and gonna be running 4 DC level 4's. I think if your gonna do a blwo through go ahead and get some ****** subs and build a nice enclosure for it and you will definitely have all the bass you ever need.