AWE Tuning SwitchPath Cat-Back 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 SwitchPath Exhaust for the BMW F8X M3 and M4. Minimal bends, maximum flow, and push-button attitude. The SwitchPath 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 SwitchPath 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 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 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 SwitchPath. Comes complete with quad diamond black tips, and AWE's No CEL Guarantee.
Features
- SwitchPath utilizes factory valving and retains M-Sport button functionality
- Proudly engineered, designed, and manufactured in-house at AWE
- 3" CNC mandrel-bent Cat Back configuration
- Unified design for OPF euro and non-euro spec cars
- Max gains of 12 hp and 16 lb-ft of torque at the wheels
- No Check Engine Light Guarantee
- 50-state legal Cat Back design: sick sound with all catalysts intact
- Perfect Fitment Guarantee
- Tip options include 102mm double-walled, slash-cut tips in Diamond Black
- Precision-engineered X-pipe to unlock a clean S55 tone
Specifications
| Part Number | 3025-43074 |
| Brand | AWE Tuning |
| Part Type | Cat-Back Exhaust |
| System Type | Cat Back |
| Edition | SwitchPath |
| Material | T304L Stainless Steel |
| Tip Finish | Diamond Black |
| Tip Quantity | 4 |
| Tip Diameter (in) | 4 |
| Tubing Diameter (in) | 3 |
| Valved | Yes |
| 180 Technology | No |
| Tune Required | No |
| Emissions Legality | 50 State Legal |
| Country of Origin | USA |
| Warranty | Lifetime on exhaust, 1 year on tips |
| UPC | 810098802772 |
Vehicle Fitment
Fits: 2015-2020 BMW models including M3. Use the vehicle selector above to confirm fitment for your exact car.
Emissions: 50 State Legal.
California Proposition 65 Warning
WARNING: AWE products in their physical form as sold do not present a chemical exposure hazard. However, operations including, but not limited to welding, brazing, or thermal cutting can expose you to chemicals including Chromium, Nickel, Cobalt, Arsenic, Cadmium, and Lead which are known to the State Of California to cause cancer, birth defects, or other reproductive harm. Likewise, operating, servicing, and maintaining an automobile can expose you to chemicals including engine exhaust, carbon monoxide, phthalates, and lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. To minimize exposure, avoid breathing exhaust fumes, service your vehicle in a well-ventilated area, and wear gloves or wash your hands frequently when servicing your vehicle.
