MBRP 15.5-16 GM Duramax 6.6L 3in Down Pipe Kit

Replace that restrictive factory downpipe with a MBRP direct replacement downpipe for more flow, fuel economy, and better performance. Removal of OEM catalytic converters may be a violation of emissions laws in your jurisdiction. Ensure that the intended use of this product is permitted. Not for sale or use in the state of California.

• Direct Replacement. 20% Increased Flow Over Stock. Richer Diesel Sound.
• 20 Percent Greater Flow Over Stock
• Will Not Affect Emissions
• Gains Of +21 Horsepower
• 24 lb./ft./ Torque Gain
• Greater Heat Retention
• Richer Diesel Sound