AWE Tuning - SwitchPath Axleback Exhaust - BMW F97/F98 X3M/X4M

AWE made the S58 sound epic with the valves closed, and with them open… again! All while remaining emissions-compliant. 

In axle-back form, the SwitchPath® retains the X3M/X4M’s factory mid-section, coming in right at the rear axle. The AWE Switchpath® Axleback Exhaust maintains a 3” diameter, shaves weight from the rear, and retains the factory valve behavior.

Specifications

• 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

The closed valve experience
When the valves are closed, the SwitchPath Exhaust produces a refined, aggressive howl while remaining full-bodied and powerful – no congested, metallic sounds here when on the throttle. At cruising speeds, interior acoustics are close to stock. AWE SwitchPath tech also responds perfectly to the many transmission settings and shift points in DCT vehicles. Drop the hammer with the valves closed and SwitchPath sings a proper M anthem. If you were to leave the valves closed at all times after equipping SwitchPath, we wouldn’t blame you, it’s that good… all of the time.

The opened valve experience
Open the valves and the S58’s roar is uncorked. Sport and Sport+ modes achieve the ultimate contrast in behavior when compared to comfort driving modes (valves closed). In Sport mode, the exhaust note is powerful, clean, and aggressive. In Sport+ mode, the same aggression applies… but with grin-provoking burbles…a lot of grin-provoking burbles. 

If you’re looking for the best of both worlds and want to retain your factory valve behavior all while gaining peace of mind (i.e. emissions compliance), look no further than SwitchPath.

Tips
The SwitchPath and Track Edition Exhausts feature statement-making quad 4.5-inch double-walled, slash-cut tips in either chrome silver or diamond black, complete with a stamped AWE logo.

Vehicles Supported
BMW F97/F98 X3M/X4M, including Competition