My truck is running straights that doesnt have an h pipe or anything in it. I had the exhaust guy run them seperate off of the last set of cats(for some reason i have 6) and i prefer being really loud. Mines not rediciously loud or anything, guess i could take a clip. It probably wouldnt help you being a big ass truck with a 5.4 though. I loved the sound of my stang with straights, but it didnt sound to good if you reved and let it come back down fast, popped everynow and then. It was the cheapest thing i did to my car, only cost $90 including chrome tips.