BMW G8X M3 / M4 Valved Exhaust - Catback - Single Midpipe
BMW G8X M3 / M4 Valved Exhaust - Catback - Single Midpipe
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The G80/G82 M3 and M4 don’t need help turning heads—but they do need help sounding right. Our 304 stainless valved system gives the S58 the tone it deserves—louder, deeper, and way more aggressive than stock. The single midpipe design brings out the signature inline-6 sound, adding volume and clarity without drone. This design allows for a deeper tone which removes the typical rasp that plagues the S58 motor. Open the valves and it’s chaos. Close them and it chills—just enough. Built from 100% 304 stainless with precision TIG welds and designed using 3D scans, it fits like factory but sounds nothing like it. Clean, aggressive, and made for drivers who actually enjoy driving.
Features:
- Louder, more aggressive sound–with zero drone
- Single midpipe creates a deep tone and eliminates rasp
- Valve-controlled chaos: violent when open, stealthy when shut
- Built from 100% T304 stainless steel with pro-grade TIG welds
- Engineered using 3D scans for perfect fitment and a clean, OEM+ fit
- Direct bolt-on installation with complete hardware mounting kit
- Lighter than stock for a slight edge in performance
- Comes standard with a free HOA violation
The Majority of our products are in stock. Once your order is placed, all products are shipped via standard ground service, which typically takes 5–7 business days for delivery.
In the event that we currently do not have stock, please allow up to 2 weeks for production.
Free shipping is included on all orders within the continental United States.
Due to the custom nature of our products, all sales are final. We do not accept returns or exchanges unless the item arrives damaged or defective. If there’s an issue with your order, please contact us immediately so we can make it right.
All KAOS products are intended for off-road or track use only. They are not certified for street use and may not comply with local, state, or federal emissions or noise regulations. It is the customer’s responsibility to ensure compliance with applicable laws before installing or using our products.
By purchasing from KAOS, you acknowledge that these parts may alter your vehicle's emissions, sound level, and performance characteristics. Use at your own risk.
The Majority of our products are in stock. Once your order is placed, all products are shipped via standard ground service, which typically takes 5–7 business days for delivery.
In the event that we currently do not have stock, please allow up to 2 weeks for production.
Free shipping is included on all orders within the continental United States.
Due to the custom nature of our products, all sales are final. We do not accept returns or exchanges unless the item arrives damaged or defective. If there’s an issue with your order, please contact us immediately so we can make it right.
All KAOS products are intended for off-road or track use only. They are not certified for street use and may not comply with local, state, or federal emissions or noise regulations. It is the customer’s responsibility to ensure compliance with applicable laws before installing or using our products.
By purchasing from KAOS, you acknowledge that these parts may alter your vehicle's emissions, sound level, and performance characteristics. Use at your own risk.
Questions about an exhaust?
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