Banks Power 11-14 Chev 6.6L LML ECLB/CCSB/CCLB Monster Exhaust Sys - SS Single Exhaust w/ Chrome Tip4 inch heavy duty stainless DPF back Monster Exhaust system with constant diameter intermediate pipe and tailpipe. Exclusive CoolCuff design lowers tailpipe temperatures as much or more than stock while simultaneously improving flow and cutting backpressure by nearly 57%. The CoolCuff design is tested and refined by Banks engineers using Computational Fluid Dynamics software, then validated through extensive temperature testing in all areas: before