Banks Power 20-23 Chevy/GMC Duramax DRW Crew Cab 5.0in Monster Exhaust w/ S/S Chrome TipBanks 5" aluminized steel constant diameter DPF back exhaust system with negative backpressure SideKick tip. Improves throttle response and fuel economy by lowering backpressure up to 9% at the turbine inlet. Allows the engine to exhale and breathe more efficiently and redirects hot exhaust gas to the side. Prevents trailer meltdown with 15% lower temps behind the tip. Includes huge chrome or Cerakote Black obround SideKick tip. Key Features: 5"