Fits: 2011 Thru 2015 Chevy Silverado/GMC Sierra 2500HD/3500HD LML Duramax Diesel (V band Flange)

This high-performance 3” mandrel-bent turbo downpipe is designed to replace the restrictive factory downpipe with smooth, consistent bends that significantly improve exhaust flow. By eliminating crushed sections found in the OEM design, it reduces backpressure for quicker turbo response, lower EGTs, and improved overall efficiency, especially under load. Built from 304 stainless steel for superior heat resistance and long-term durability, and thermally wrapped to help control under-hood temperatures, this downpipe delivers measurable performance gains while remaining 50-state legal with CARB EO approval.

Features:

• 3" diameter 304 stainless steel material for superior thermal qualities.
• Far superior to 409ss or mild steel. (You wouldn't really use mild steel for a turbo down pipe would you?)
• Thermal heat wrapped to reduce under hood temperature. 

DmaxStore Note: 

• 50 State Legal CARB EO# D-765

• V band Flange