Virtually indestructible 100 percent stainless TorqueTubes maximize exhaust extraction, unleashing gobs of torque. Banks TorqueTubes maximize exhaust extraction and torque. Exclusive tuned-length, parallel 5-tube exhaust manifolds designed specifically for motorhomes. 5-Year Limited stainless steel construction never cracks or blows. Mandrel-formed tubes tune exhaust flow for maximum torque. Patented PowerPickle pulse converter maximizes exhaust extraction (see the big PowerPickle). No sealant or gaskets required. 5/8 inch thick flanges never warp. Flanges welded both sides, then milled flat. Includes stainless Y-pipe assembly with seamless Y-collector. Includes necessary heat shielding. Unlike competitors who add a separate tube length to a 4-tube formation, Banks integrates five tuned-length tubes into a design that allows rotational firing of the cylinders through the exhaust, minimizing backpressure and maximizing torque. The thick, 5/8 inch flanges never warp or leak. Maximize exhaust extraction and torque. And check out that amazing Power Pickle! 5-Year Limited Warranty Torque Tube Exhaust Header System for use with 2016 Ford 6.8L V-10 Class-C Motorhome, E-Super Duty Key Features: Virtually indestructible 100 percent Stainless Steel Mandrel-formed tubes tune exhaust flow for maximum torque Maximize exhaust extraction Flanges welded on both sides, then milled flat Seamless high-velocity collector Pulls exhaust and slashes backpressure Includes Y-pipe and heat shielding 5/8 inch thick flanges won't warp or flex Includes all necessary hardware US Patent #8,468,812 B1 49 State Compliant Not for sale in California