Hey guys im rly curious, my friend plans on doing a t88 conversion, but is confused about one thing and i wasnt sure about it either, is a 4' dp to a 3' exhuast straight back the best thing to do "custom fabricated exhuast with Mangaflow Mufflers" or just get a greddy or hks cat back with mp and dp better, im guessin the 1st one but would do u think would the the price difference... thanks