Skip to content

2001-2007 Duramax 4" Downpipe Back Single No Muffler (FLO-801NM)

Original price $476.54 - Original price $476.54
Original price
$476.54 - $476.54
Current price $476.54

This product cannot be shipped to the USA

  • Overview
  • Features
  • Fits
  • Notes

FLO~PRO Performance Exhaust has made the necessary changes to ensure a simple installation as all our exhaust kits come with necessary clamps, prewelded contour bent hangers, and stronger flanges. With this exhaust system you can expect increased performance, lower EGTs and improved flow. Allow your truck to breath and let'er flow with a FLO~PRO Performance Exhaust.

  • Ease of installation
  • Contour Bent Hangers
  • TorcTite® Clamps
  • No Bungs
  • Fits Cab/Box Configurations: EC-CC/SB-LB-Dually

GM Duramax

2001 - 2007

These parts are for use on non-registered race vehicles on closed-course competition events *Installing or using this part on any emission-controlled vehicle ("street" or "off-road") may violate federal and/or state emissions laws and regulations. *Not available to ship to the United States


Most orders are shipped 1-2 weekdays after an order is placed, depending on availability. Some products are shipped directly from manufacturers and may be subject to duty and taxes.


Not all products are stocked in house. Please check for availability as some products may be backordered.