Banks Power 11-14 Chev 6.6L LML ECLB/CCSB/CCLB Monster Exhaust Sys - SS Single Exhaust w/ Black TipThe 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 economy. The Monster Exhaust system cools while flowing up to 80% better than stock! Cooling without killing flow is a major challenge. But the Monster Exhaust wins on both