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![Magnaflow 3.5” Street Series Cat-Back Performance Exhaust System 2009-2011 GMC Sierra 1500 Magnaflow 3.5” Street Series Cat-Back Performance Exhaust System 2009-2011 GMC Sierra 1500](https://cdn11.bigcommerce.com/s-5yvdnrf5of/images/stencil/300x300/products/2601/2980/F198849730__77929.1574648258.jpg?c=1)
This is MagnaFlow's Cat-Back for the GMC Sierra or Chevy Silverado 1500. The Street Series features a 3.5" Main Piping Diameter with an Exit Style Dual Split Rear Behind Rear Tires. The Inlet Connection Type is a basic Clamp-On with a Straight-Through Muffler Type made of Stainless Steel with a Satin finish. The Tip Shape is Round with a Diameter of 3.5" and a length of 12".