aFe 2001-2004 GM Duramax Diesel Trucks 6.6 LB7 3" Turbo Downpipe-Black

Year Make Model SubModel Engine Fuel 2001-2004 Chevrolet Silverado 2500 HD Duramax V8 6.6L (td) Diesel 2001-2004 Chevrolet Silverado 3500 Duramax V8 6.6L (td) Diesel 2001-2004 GMC Sierra 2500 HD Duramax V8 6.6L (td) Diesel 2001-2004 GMC Sierra 3500 Duramax V8 6.6L (td) Diesel Upgrade the performance of your 2001-2004 LB7 GM diesel with the aFe ATLAS 3" Turbo Down-pipe. Designed for improved flow and optimal fitment, this down-pipe is a perfect upgrade to your OE down-pipe, utilizing factory mounting locations for a true bolt-on performance. Enhanced Flow and Response: Constructed from 3" mandrel bent steel tubing, the ATLAS Turbo Down-pipe offers smoother transition bends to minimize turbulence and deliver quicker throttle response. The larger tube diameter and improved airflow between your OE turbo and exhaust system help reduce exhaust gas temperatures (EGT's) and achieve faster turbo spool times. Leak-Free Seal: The CNC machined heavy-duty inlet flange and qual