Banks Power 07-10 Chev 6.6L LMM ECSB-CCLB Monster Exhaust System - SS Single Exhaust w/ Black TipCuts backpressure by nearly 57 Percent. 4 inch constant diameter DPF back system. Patented SideKick tip cools temps. Includes Huge Cerakote Black Patented SideKick tip. The Banks Monster Exhaust is engineered using computational fluid dynamics (CFD) software then tested on both dyno and on road. Reducing backpressure allows the engine to expel spent gasses with less effort. Less pumping loss means more horsepower, lower EGTs, and improved fuel