21-24 BMW G8X M3/M4 SwitchPath Catback Exhaust - Chrome Silver Tips
SwitchPath™ Exhaust:
Presenting the first AWE SwitchPath™ configuration for BMW to incorporate patented drone-canceling 180 Technology®.
No drone, minimal bends, maximum flow, and push-button attitude. The SwitchPath™ Exhaust is comprised of 3-inch U.S.-sourced T304L stainless steel, a precision x-pipe, and a valved SwitchPath™ muffler tuned specifically for the S58.
Beginning after factory mid pipe, the precision X-pipe immediately helps smooth the S58 of its rasp, deepening the tone before its refined further by the bespoke SwitchPath™ muffler in the rear.
The Opened 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 when on the throttle. At cruising speeds, interior acoustics are close to stock with no drone at cruising speeds. AWE SwitchPath™ tech also responds perfectly to the many transmission settings and shift points in automatic 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 Closed 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. 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 (i.e. drone-free, clean aggression), and want to retain your factory valve behavior all while gaining peace of mind (i.e. emissions compliance), look no further than SwitchPath™.
Made in PA, USA:
Engineered, designed, and manufactured in-house at AWE using US-sourced .065”-wall T304L stainless steel to achieve a tone deeper than everyone else.
Installation instructions
Product Details

- AWE's first SwitchPath™ exhaust for BMW to incorporate drone-canceling 180 Technology®
- SwitchPath™ retains factory valve controls, no additional remote needed
- Quad 4.5” double-walled, slash-cut tips available in chrome silver and diamond black
- Less is more: clean, straight-through design maximizes performance
- Engineered, designed, and manufactured in-house at AWE
- Handcrafted from CNC mandrel-bent U.S.-sourced T304 stainless steel
- Direct bolt-on system for factory-like simplicity
- Perfect Fitment - guaranteed
- Featuring the AWE Lifetime Exhaust Warranty
Fitment
Year | Make | Model | Sub-Model |
---|---|---|---|
2021-2024 | BMW | M3 | Base |
2021-2024 | BMW | M3 | Competition |
2022-2024 | BMW | M3 | Competition xDrive |
2021-2024 | BMW | M4 | Base |
2021-2024 | BMW | M4 | Competition |
2021-2024 | BMW | M4 | Competition xDrive |
AWE's Warranty
For information on AWE's warranty terms and conditions, please click here
Purchase Disclaimer: You are hereby informed and warned to check your local, state, and federal laws before buying and installing these or any aftermarket parts to be sure whether usage is in violation. All installation-risk and use-risk is borne by the end-user and installer of these parts. Bolt Motorsports does not condone the use of emission defeat devices for any vehicles used on public streets or roadways. Bolt Motorsports will not tamper, remove, disable, or bypass emissions equipment on a motor vehicle in accordance with 40 CFR Section 86.1854.12(a)(3), Clean Air Act 40 CFR 1068.101(b). This includes software, known as tunes, that reprogram a motor vehicles electronic control module to alter engine performance and enable the removal of filters, catalysts, and other critical emissions controls. In accordance with local laws and regulations, Bolt Motorsports will not ship parts to locations where usage or installation of said part would be in violation of the aforementioned acts.