[f250 fx4 kid]

ok so i finally put my 210 spartan and dpf cat delete in my truck... i have about 4,000 miles on it and i love it..... Now i have a few questions which dpf back system sounds the best the mbrp 5" installer series or the magnaflow 5" pro performance?... is there a noticable difference with gettin a 4" and a 5" i mainly just want my truck to be louder and throatier.. also how about those mbrp "smoker" stacks.. i just want to find the cheapest way to make it sound alot better i either want a big 6" or 7" tip out back or big stacks...