Banks Power Monster Exhaust System (2011-2015 GM 2500/3500 & 2016 GM 2500 6.6 Diesel)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 89% from the DPF and 9% at the turbine inlet, allowing the engine to produce more horsepower. Includes Huge Polished Chrome or Cerakote Black Patented SideKick tip. US Patent #5,581,111 S1 CARB E. O. Not Required Fitment Note Note: For 2016 3500HD models only, you will need