X marks the spot. Presenting the AWE SwitchPath™ Exhaust Suite for the BMW F9X X3 M & X4 M: Available as a valved Axleback; modular Performance Mid Pipes sold separately SwitchPath™ Axleback features drone-canceling 180 Technology® Retains full factory valve behavior using OEM valve motors—no extension harnesses needed Axleback is compatible with factory or aftermarket mid pipes that maintain the OEM break point Performance Mid Pipes are designed to work seamlessly with the factory axleback, or AWE Axleback Bespoke X-pipe in the non-resonated Performance Mid Pipes delivers a refined S58 tone when paired with SwitchPath™ Quad 4.5” double-walled slash-cut tips in chrome silver or diamond black Max gains of 9 hp and 2 lb-ft of torque at the wheels (Axleback + Mid Pipes) 50-state emissions-compliant Clean, straight-through design for maximum performance Handcrafted in-house at AWE AWE No CEL Guarantee AWE Perfect Fitment Guarantee AWE Lifetime Warranty