With more power, quicker acceleration, and tougher construction than ever, the new Banks Revolver out - muscles any competitive exhaust manifold. Period You'd think that being made from super - durable, mandrel - bent 409 stainless steel tubing and sporting a 12 inch thick precision ported and machined flange was enough but there's more. The header is fortified with a Revolver collector which features Banks' patented Power Pickle exhaust collector technology for maximum power. The Revolver manifold features a longer center tube in the 6 - cylinder exhaust collector which captures exhaust pulse action and turns it into massive torque throughout the operating range. Powering through the roughest terrain is no longer a question. And cracking... a thing of the past when you arm your Jeep with Banks TorqueTubes. US Patent 8,468,812 B1