After our suspension install, our Wrangler needed a new cat-back exhaust system due to clearance issues with the stock parts. We’ve used the Banks Monster muffler in the past and liked the fact that it produced a decent sound, without an overly obnoxious drone. The kit includes a muffler, tailpipe sections, and polished stainless steel tip. We’ve actually run this kit without the rear section of the pipe before and had it dump just after the rear axle. The advantage to this is that it clears the suspension components on lifted rigs more easily and you don’t have a tail pipe sticking under the frame just asking to be crushed on the trail. Just as Banks engineered the intake for more flow—measured in cubic feet per minute (cfm)—the 21⁄2-inch stainless exhaust system is designed to expel air more rapidly. Banks measures this as a 140 percent cfm improvement in flow over stock.