I went to the muffler shop where i got my exhaust done originaly and i liked there work so i asked him how much it would cost to put true duals and an H pipe and he said he couldnt do it without throwin the sensors, but my buddy did it on a truck the same as mine and it didnt. Has anybody done this and did it throw the sensors? Also would an h pipe or an x pipe be better for tourqe? Im tryin to get it as loud as i can without removing the cats. Please help with any of the questions.