Magnaflow 4" Catalytic Converter Back Single Outlet Exhaust
2006-2007 6.6L LLY / LBZ GM Duramax
Crew Cab, Short Bed
The name MagnaFlow has been a staple in the automotive industry for years, and this is no exception to the diesel market. Following suit with their proven performance exhaust, is their different lines of exhaust for diesels. MagnaFlow performance diesel exhaust comes with a lifetime warranty, is dyno tested, and proven to make significant gains in horsepower and torque. All MagnaFlow kits also feature all welded, mandrel bent stainless steel exhaust and muffler. And, of course, that unmistakable MagnaFlow sound!
This kit by MagnaFlow is available in their three different series:
Pro Performance

Entry-level performance diesel system featuring:
- Satin finish 100% stainless steel muffler
- Stainless steel band clamps
- Mandrel-bent stainless steel tubing
- Optional 5" diesel tips are sold separately
- Lifetime warranty
XL Series

Mid-level performance diesel system featuring:
- Satin finish 100% stainless steel muffler
- Stainless steel band clamps
- 4" mandrel-bent stainless steel tubing
- 5" polished single wall tip
- Lifetime warranty
MagnaFlow Series

Premium line featuring:
- Giant, fast-flowing, 4" mandrel-bent stainless steel tubing
- Polished 5" diameter stainless steel double wall tip
- Mirror finished MagnaFlow Performance Mufflers with a straight-through design.
- Lifetime warranty.
The Simple difference between the 3 models are muffler polish quality and exhaust tips:
- Pro Series does not come with a Tip. Must be purchased separately.
- XL Series comes with a single walled tip.
- MagnaFlow Series comes with a premium double walled tip and mirror finish on the muffler.
All MagnaFlow Exhaust Kits Include a Lifetime Warranty
Simply choose which series of exhaust you would prefer from the options below.
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