Slashes back pressure 40 Percent. Available separately or with Banks Monster Exhaust Stainless, 3.5 inch Monster turbine - outlet pipe with ceramic - matrix heat shield. Remove the final restriction to power. Banks Power Elbow assembly slashes the stock outlet and pipe backpressure by 40 percent. Available separately or with Banks Monster Exhaust. Includes Cast, large - bore elbow housing Stainless, 3.5 inch Monster T.O.P. turbine - outlet pipe with ceramic - matrix heat shield Mounting hardware. Note Banks Brake and Banks Power Elbow cannot be used on the same vehicle.