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Banks Power 48947 Single Monster Exhaust System

2017-2019 GM 6.6L Duramax L5P (All Cabs & Beds)
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★★★★★ ★★★★★ 1 Reviews
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Improve flow in your 2017-2019 GM 6.6L Duramax L5P with the Banks Power 48947 Single Monster Exhaust System. Banks Power has tested this exhaust system to cool as much or more than stock, and even over 100 degrees cooler than other aftermarket systems. Flowing up to 80% over stock, this 4" exhaust system is constructed from mandrel-bent stainless steel and cuts backpressure by nearly 57%. 

  • 4" Stainless Steel Construction
  • Lower Exhaust Gas Temperatures
  • Mandrel-Bent Constant Diameter Tubing 
  • Black Or Polished Exhaust Tip Available 
Fitment Note: All Cabs & Beds applies to GM 2500HD/3500HD Pickups. This system is not intended for use on Cab & Chassis models.

Product Options

48947 Chrome Tip
48947-B Black Tip


  • Manufacturer Name Banks Power
  • Shipping Weight 34.00 lb.
  • Shipping Length 40 in.
  • Shipping Width 15 in.
  • Shipping Height 11 in.
  • Fuel Type Diesel
  • Warranty Yes
  • Warranty Info 5 Year Limited
  • Prop 65 WARNING: Cancer & Reproductive Harm -


★★★★★ ★★★★★
2.0/5 Stars out of 1 Reviews
Verified Buyer
(Phoenix, AZ) | June 25th, 2020
Just received my new BANKS exhaust kit. Price was right! Really appreciated the quick delivery, wasn't expecting that. VERY disappointed that the photographs and description indicated that the product "featured" the Cool Cuff but my kit was the old version, straight pipes. Was going to order the BANKS air intake as well but it is currently out of stock with no anticipated date of delivery. Will be contacting customer service.

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