• Buy With Confidence
  • We're the ExpertsAsk us anything
  • Free Ground Shipping On U.S. orders over $99
  • Price Match Guarantee We match all advertised prices
  • Fast & Easy Shipping No Hassle Returns made easy
Click on image to zoom

Atlas CAT Delete Pipe for 2011-15 GM Duramax | AFE 49-04021


Gain up to 19 hp and 27 lbs. x ft. torque and outflows the factory intake by 50%. Want a better deal? Contact us about a performance package today.

Pricing: $261.25

Free Shipping!


All systems use factory mounting locations providing stability and hassle-free installation.

Leak-Free Seal: High quality OE  style band clamps and flanges are used for a complete 360º sealing  surface. Standard U-bolt clamps used by other systems only seal at the  bottom and top of the tube allowing leak paths.

Flow and Performance: ATLAS  exhaust pipes are constructed of precision, mandrel bent 4" aluminized  steel tubing for maximum flow. Smooth transition bends allow for low  turbulence, increasing horsepower, torque and lowering EGT’s.

Note: This is a "Race Only"  product used soley for competition. It's use is limited to  closed-course and open-course racing that is formally sanctioned by a  recognized racing organization. Any other use including recreational  off-road use, could be in violation of local, state and federal laws.

Shipping Information

  • Item Requires Shipping
  • 35.0 lbs.
  • Free Shipping!