Scavenger Series® X-Pipe. Go all out on the trails with the Flowmaster American Thunder Cat-Back Exhaust. This cat-back exhaust system delivers a powerful and throaty sound upon cruising, reinventing how you manage your ride. It uses a premium grade dual 3-inch mandrel-bent Flowmaster American Thunder Cat-Back Exhaust and Super 40® Series mufflers to deliver the performance you crave. Uses Factory Hangar Locations. This unit uses your factory hanger locations for a seamless installation, re-using your stock exhaust valves. Warranty. This product is protected by a limited lifetime warranty, which protects against defects in materials and workmanship from the manufacturer. The manufacturer accepts no responsibility for lack of maintenance or improper use. Installation. It takes no more than 2 hours to install this product if you have moderate to expert level mechanical skills. Application. The Flowmaster American Thunder Cat-Back Exhaust is designed for the 2017-2023 5.7L Dodge Charger HEMI.