Banks Power Monster Exhaust

02 - 05 6.6L GM Duramax w/ Catalytic Converter

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SKU NWD-48632
Cab & Bed Configuration
Tip Color
Banks 4 Monster Exhaust is made of rugged, long-lasting 100% stainless steel. Monster Exhaust utilizes the factory hangers and maintains proper clearance to all under-vehicle components. With nearly five decades of engineering airflow improvements, Banks has gotten good at maximizing flow while minimizing backpressure. 

The polished straight-through Monster Muffler, mandrel-bent intermediate pipe(s) and tailpipe nearly triple the exhaust flow, cut backpressure up to 98%, lower exhaust gas temps and deliver more power to the ground. And the 5 inch rolled-edge tip is available in your choice of polished chrome-over stainless or high-temp black! And to help keep it looking good, there's an air gap to keep heat from tarnishing the finish. An adjustable clamp lets you position it on the tailpipe just right. Engineered to ditch the drone. Many straight-through mufflers deliver an obnoxious drone that overpowers conversations. Banks Monster Muffler is extensively sound-tested and engineered with a unique expansion chamber and high-temperature packing. Instead of a drone, you're treated to a rich exhaust note that's authoritative, yet civil. It sounds as great as it looks! 4 inch stainless constant-diameter pipes and straight-thru muffler improve flow up to 176% and lower EGTs. Cuts backpressure up to 98%; rich, throaty sound.


  • Mandrel bent Stainless Steel construction
  • Virtually eliminates backpressure
  • Lowers exhaust gas temps
  • Dramatically improves flow
  • Maximum Airflow
  • 100% stainless, not aluminized!
  • Improves flow up to 176%
  • Cat-back
  • Giant polished CHROME rolled-edge tip
  • Mufflers expansion chamber cuts the drone
  • Fits Standard cab, long bed w/catalytic converter
Year Make Engine



6.6L Duramax