The AFE 49-44045 Large Bore HD 4" Downpipe-Back Exhaust System for your 2002-2004 GM 6.6L Duramax is constructed from 4" mandrel-bent 409 stainless steel tubing and uses a 24" long muffler, high quality band clamps and OE-style bayonet hangers. This unit uses all factory mounting locations and comes with a bolt-on bracket that supports the driver side tailpipe. This provides for a quick, hassle-free installation with no modification necessary.
Also included in this exhaust system are your choice of high temp black or polished stainless steel tips with a laser-cut stainless steel aFe power badges. Large Bore HD exhaust systems are the perfect combination of performance, fit and value.
Installation is a Snap:
All systems use factory mounting locations providing stability and a hassle-free installation.
High quality OE-style flange and band clamps are used for a complete 360 degree sealing surface.
Fits With Spare Tire:
This exhaust system fits perfectly without removing the spare tire.
Flow & Performance:
This Mach Force XP Exhaust System is constructed of 4" mandrel bent 409 stainless steel tubing for maximum flow.
OE-Style hangers with bayonet tip are used to maintain a stable pipe location during high vibration and high heat conditions
409 Stainless Steel Construction
Mandrel Bent Tubing
Free-Flowing 24" Muffler For Powerful Sound
Leak Free Seal with OE-Style Band Clamps
Uses Factory Mounting Locations Easy Bolt-On Installation
Fits With Spare Tire
Made in USA