Banks Monster Exhaust System 5" Single Exit for 2020-2021 GM 6.6L L5P Duramax


SKU gbe48997


Monster® Exhaust System5-inch Single Exit, Black SideKick® Tipfor 2020-2021 Chevy/GMC 2500/3500 6.6L Duramax, L5P

85% less backpressure, 15% lower exhaust exit temp

5-inch aluminized steel constant-diameter DPF-back system. Patented negative backpressure SideKick tip helps lower exhaust exit temps by 15%. Improves flow and cuts backpressure by 85% allowing the engine to produce more horsepower.

Banks Power introduces the new 5-inch Monster Exhaust designed specifically for the 2020-2021 GM 6.6L Duramax L5P 2500/3500 HD pickup trucks. The DPF-back exhaust system features constant-diameter 5-inch mandrel-bent aluminized steel tubing and a massive patented tip which virtually eliminates backpressure after the DPF and prevents trailer meltdown.

Up The Flow

With the stock exhaust nozzle measuring 2.85-inch compared to the Monster Exhausts massive 5-inch outlet, the Banks system offers a 192% greater flow area than stock. The Monster Exhaust boasts 85% less backpressure than stock, leading to more power and increased fuel economy.

Change Your Look

Duramax owners can choose from two huge patented 6.5 x 7.5-inch ob-round slash-cut exhaust tips: chrome-plated polished stainless steel or high-temp Cerakote matte black. And, unlike other brands, Banks's Cerakote black tip will not turn brown with heat.

Drop That Heat

The Monster Exhaust also provides a 15% reduction in exhaust temperature two feet behind the tip during regen! The Diesel Particulate Filter (DPF) on the Duramax L5P is cleaned through regeneration in which scorching exhaust gas temperatures can last up to 20 minutes while driving. Unlike the stock Duramax exhaust, which directs a prolonged jet-like blast of super-heated exhaust gas directly at anything being towed, the Monster Exhaust is aimed out to the side of the truck. This allows ambient air to diffuse the heated gas, eliminating the risk of melting a trailer, which has been reported by many Duramax owners.

  • 5" aluminized steel constant-diameter DPF-back exhaust system.
  • 15% reduction in exhaust temperature 2 feet behind the tip during regen
  • Huge patented 6.5" x 7.5" ob-round slash-cut exhaust tip
  • 85% less backpressure than stock
  • Fits: DCSB, DCLB, CCSB, CCLB Including Dually Models
  • Ob-Round Exhaust Tip Patent No. D558,111
  • Fits trucks with aftermarket airbags
    see fitment notes section above
  • 1-Year Limited Warranty

Emissions Compliant: E.O. Not Required

US Patent #5,581,111 S1