SwitchPathâ„¢ Exhaust

We made the S55 sound epic with the valves closed, and with them open... again! All while remaining emissions compliant. Presenting the second generation of SwitchPathâ„¢ Exhaust for the BMW F8X M3 and M4. Minimal bends, maximum flow, and push-button attitude. The SwitchPathâ„¢ Exhaust is a true Cat Back configuration comprised of 3-inch and 2.5-inch U.S.-sourced T304L stainless steel, a precision x-pipe, and a valved SwitchPathâ„¢ muffler tuned specifically for the S55. Beginning after the secondary catalysts, the precision X-pipe immediately helps smooth the S55 of its infamous rasp, allowing the tone to be further refined by the bespoke muffler in the rear. When the valves are closed, the SwitchPathâ„¢ 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 SwitchPathâ„¢ tech also responds perfectly to the many transmission settings and shift points in DCT vehicles. Drop the hammer with the valves closed and SwitchPathâ„¢ sings a proper M anthem. If you were to leave the valves closed at all times after equipping SwitchPathâ„¢, we wouldn't blame you - it's that good... all the time. Open the valves and the S55'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. Thanks to the precision X-pipe, the rasp is still kept in check while allowing the exhaust note to reach full aggression. 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 SwitchPathâ„¢. Comes complete with quad chrome silver tips, and AWE's No CEL Guarantee

Additional Information

AWE SwitchPathâ„¢ Catback Exhaust for BMW F8X M3/M4 - 4" Chrome Silver Tips

Product Overview

AWE Tuning BMW F8X M3/M4 SwitchPath Catback Exhaust - Chrome Silver Tips

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

Important Notice relating to US Domestic Market Trucks & Pickups

Many US-market trucks and pickups are available in multiple cab and bed-length configurations (e.g., Single Cab, Extended Cab, Double/Crew Cab, CrewMax, 5.5ft/6.5ft/8ft beds, etc.). Exhaust system fitment can vary between these chassis versions.

Where available, we list all compatible vehicles, cab types, and bed lengths in the product description. However, depending on your exact configuration, some systems may require optional extension/mid-pipes or minor modification for correct fitment.

Because of these variations, please carefully check your cab configuration and bed length before purchasing. If you are unsure, or if your vehicle has been modified, please reach out to a StreetFX agent.

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Product Details

Product Downloads

#	Document Type	Download
1.	Installation Instructions

Installation guides, warranty details, and other supporting documents are provided by the supplier. In some cases, these files may originate from regions outside your locale, meaning instructions, warranty procedures, and images may not fully align with your specific vehicle or region (e.g., LHD vs. RHD differences, return policies, etc.). If you need clarification, please contact a StreetFX support agent.

Reference Information

SwitchPath Catback Exhaust for BMW F8X M3/M4 - Chrome Silver

AWE Tuning SwitchPath Edition exhaust systems are available in a wide range of options to complement your particular vehicle. An unmatched piece of performance engineering, these systems unlock the perfect combination of exhaust tone, sound volume and practicality. SwitchPath incorporates a proprietary mechanical valve system that controls sound volume—from civilized to aggressive. Besides the incredible sound, drivers have experienced double-digit gains in both horsepower and torque. The cat-back or rear axle-back systems feature mandrel-bent .065 in. wall 304 stainless steel construction, with a variety of chambered/valved muffler, inlet/outlet, and tip choices. Examine the options available for your vehicle.

Additional product details:
• Minimal bends, maximum flow, push-button attitude
• Tip options include 102mm double-walled, slash-cut tips in chrome silver or diamond black
• Most models utilize factory valving
• Precision-engineered X-pipe to unlock clean, epic tone
• When the valves are closed, SwitchPath produces a refined aggressive howl while remaining full-bodied and powerful; no congested, metallic sounds when on the throttle. At cruising speeds, interior acoustics are close to stock.
• SwitchPath design allows driver to select volume
• In-cabin remote toggle
• Application-specific to guarantee perfect fitment