AFE 49-42079 MACH Force-Xp Axle-Back Exhaust System for 15-23 Dodge Challenger 6.4L 392 & 6.2L Hellcat. The system is crafted from mandrel-bent 409 stainless steel tubing and deletes the OE rear mufflers for enhanced sound and performance. It uses factory-style hangers for a secure fit and is 100% MIG-welded to ensure long-lasting strength and durability.