They were not able to ship resonator in one piece 🤔 so they called to say they needed to cut the pipe. Unfortunate for me I gave the ok since I needed it urgently. After installing with the coupling they sent it leaked badly as I feared. Ended up paying a muffler shop to weld it together and fix the flange at one end which was welded slant. Cost me an additional $65 to get it right 😳