This pipe is perfect for custom exhaust installs on your classic body Duramax truck. 4″ Pipe. Includes OE flange. Works with OE and aftermarket downpipes. T409 Stainless Steel.

  • 2001-2004 Chevrolet/GMC Silverado/Sierra 2500HD/3500HD

  • Fuel Type:Diesel

  • Vehicle Configuration:

    6.6L Duramax Engine Only, Models With Catalytic Converter Excluded. (2002-2004 ‘Clean State [California] has a Catalytic Converter)

  • Part Number:gms9401

  • Part Type:Component

  • Type:Front Pipe

  • Tubing Size:4-Inch ARMOR Plus

  • Material:T409 Stainless Steel