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USD 578.11
Part #: MAG16902

Magnaflow XL Exhaust System Downpipe-Back 4" SS tubing 16902

2001-2007 GM 6.6L Duramax Silverado/Sierra 2500HD/3500 CC/SB LB7/LLY
Part #: MAG16902
  1 Review
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  1 Review


Material: 100% Stainless Steel
Tubing O.D. Size: 4in.
System Type: Downpipe-Back
TIP O.D. Size: 5in.
TIP Quantity: 1
Single/Dual: Single
Exit Position: Rear Side Exit

Features and Benefits: All Stainless Steel, Mandrel-Bent, Catback Exhaust System w/ Polished Stainless Steel Tips. Lifetime Warranty, Dyno Tested And Proven To Make Power, Performance Gains In Horsepower And Torque, Great Sound -Has A Smooth; Deep Tone, Easy To Install, Mandrel-Bent. All Welded. Built To Last.

Front-Pipe Back


Additional Information

Install Sheet


  • MFG. Number 16902
  • Manufacturer Name MagnaFlow
  • Shipping Weight 64.00 lb.
  • Warranty Yes
  • Warranty Info Lifetime
  • Prop 65 WARNING: Cancer & Reproductive Harm -


Location: texas
System was very easy to install. The fit was excellent and all pieces ended up right where they should to align with hangers. Welds were all sturdy and polished nicely. Went together like a glove in about an hour and a half total time. The only problemn was the five inch tip supplied did not tighten down as the clamp ran out of threads before the tip was tight enough to keep from slipping. A fine installation with great sound!

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