2001-2007 GM Chevrolet Duramax 6.6L Turbo Back Exhaust. Great Deal for the Money! 16 gauge aluminized tubing. Includes everything necessary from the turbo back including all new hangers. Downpipe is 4" and at the base of the downpipe the system jumps into 5" and then runs 5" all the way to the tail. This kit is a Straight Pipe kit so it does not include a muffler for the ultimate in diesel performance and sound. This system deletes the catalytic converter. Tip Not Included! Fits all cab and bed sizes. Picture for representation purposes only. Does not include muffler. Includes tubing to delete the muffler.

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