2011-2015 Duramax 4" Cat & DPF Delete (431015 / 432015)

Note: & V-Band Clamp

• 4" Cat-Back Exhaust
• No Muffler/No Bungs - Straight Pipe
• Increased Torque & Fuel Mileage
• Aluminized or Stainless Steel
• Easy Installation

Aluminized steel is the budget-friendly choice. It has a protective coating that holds up well, but once that coating wears it will eventually rust through, especially in salted winter climates. The stainless option is T409 stainless, an automotive-grade steel built to resist rot, and it will typically outlast the truck. T409 is not polished show-grade stainless, so light surface rust or discoloration can still show up over time. That is cosmetic only and won't affect performance or service life.

• This will NOT work for trucks equipped with the 3-Bolt Flange off the turbo direct pipe. The turbo direct pipe on some of the 2015 models has a 3-bolt flange instead of a V-band clamp. These kits will ONLY fit models equipped with the v-band clamp

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• ?

  Does this reuse the tail pipe ? I doest show the part the goes over the rear axle does it side exit before the axle ? This one doesnt have the button for Install instructions or I wouldn't be asking these dumb questions. Sorry

  Yes.