AWE Tuning BMW F8X M3/M4 SwitchPath Catback Exhaust

Engage SwitchPath™ with the valves closed, and you'll experience a stirring M anthem. The temptation to keep them closed indefinitely is understandable—it's that impressive. Open the valves, and the S55's roar is unleashed. Sport and Sport+ modes offer a stark contrast to comfort modes (valves closed). In Sport mode, expect a powerful, clean, and aggressive exhaust note. Sport+ mode takes it up a notch with grin-inducing burbles—plenty of them. Thanks to the precision X-pipe, the rasp is kept in check while allowing the exhaust note to exude full aggression. For those seeking the best of both worlds and wishing to retain factory valve behavior while ensuring emissions compliance, SwitchPath™ is the ideal solution.

Making the S55 sound great. Again. Presenting the second generation AWE Exhaust Suite for the BMW F8X M3 and M4: 

• Unified design for OPF euro and non-euro spec cars (2015 - 2020 fitments confirmed) 
• 50-state legal catback design: 
  sick sound with all catalysts intact 
• Precision-engineered X-pipe to unlock a clean S55 tone 
• Available as valved SwitchPath™ or rowdy Track Edition 
• SwitchPath™ utilizes factory valving and retains M-Sport button functionality 
• 3” CNC mandrel-bent catback configuration 
• Max gains of 12 hp and 16 ft-lbs of torque at the wheels 
• Track Edition comes complete with AWE machined mechanical valve simulators 
• Tip options include 102mm double-walled, slash-cut tips in chrome silver or diamond black 
• Handcrafted from U.S.-sourced .065" wall T304L stainless steel 
• Proudly engineered, designed, and manufactured in-house at AWE 
• No Check Engine Light guarantee 
• Perfect Fitment guarantee 
• Featuring the AWE Lifetime Exhaust Warranty