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USD 470.14
Part #: MAG17870

Magnaflow 17870 5" Pro Series Filter-Back Exhaust System

2007.5-2019 GM 6.6L Duramax (All Crew & Ext. Cabs)
Part #: MAG17870
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The Magnaflow 17870 5" Pro Series Filter-Back Exhaust System for your 2007.5-2019 GM 6.6L Duramax has a lifetime backed stainless steel construction, a muffler-less design and mirror polished welded intercooled tips. The best value system with a no hassle emissions legal design.

  • 5" Mandrel-Bent Tubing 
  • Lifetime Construction Warranty 
  • Polished Welded Intercooled Tip 
  • Single Passenger Side Rear Exit
Note: All Crew & Extended Cab fitment applies to GM 2500HD/3500HD Pickups. This system is not designed for use on Cab & Chassis models.


  • MFG. Number 17870
  • Manufacturer Name MagnaFlow
  • Shipping Weight 25.00 lb.
  • Shipping Length 57 in.
  • Shipping Width 12 in.
  • Shipping Height 16 in.
  • Fuel Type Diesel
  • Diameter 5"
  • Exhaust Exit Single
  • Exhaust Type Filter-Back
  • Material T409 Stainless Steel
  • UPC 888563069494
  • Warranty Yes
  • Warranty Info Lifetime
  • Prop 65 WARNING: Cancer & Reproductive Harm -


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