Headers for GMC *almost new* used less than a month. Al-Otaibi custom, 3-inch size, neat and clean work, installs directly with exhaust sensor holes. Electronic muffler from Magnaflow, original, with a very nice sound. The headers are complete from the engine to the last connection, like the original. A video of the headers' sound is available for serious buyers. (Phone number appears when you press the contact button)