MAD BMW M340 M440 Catback Exhaust (G20 & G22)

The MAD BMW M340/M440 Catback Exhaust System redefines the driving experience with enhanced performance, striking acoustics, and refined design. Engineered with precision, this exhaust system transforms your BMW into a statement of power and sophistication. Key Features and Highlights Seamless Stock Tip Integration: The system is designed to reuse your stock square tips for a clean, factory-like appearance. Two pipes will discreetly point downward below the rear bumper for flawless integration (see photos). Optional 90mm Quad Tip Upgrade: Choose from three 90mm quad tip options for a sporty look. This upgrade requires removing the OEM tips. Full Catback Design: A complete system offering a richer, more aggressive sound profile to elevate your driving experience. Effortless Installation: This 100% plug-and-play system requires no cutting, ensuring a straightforward and completely reversible modification. Premium Materials: Constructed entirely from 304 stainless steel for unmatched durability and corrosion resistance. Optimized Flow and Sound: Featuring a larger 3.5'' single midpipe and 2.75'' diameter piping to enhance flow, improve throttle response, and deliver a sportier exhaust note. Advanced Valve System Dual Valve Setup: Converts the factory single-valve system into a dual-valve design, akin to M-series cars. This upgrade ensures even flow and better sound management regardless of valve position. Retains OEM Controls: The stock exhaust valve actuator is repurposed, and an additional valve/actuator is integrated on the opposing side. The system works seamlessly with your vehicle’s cabin controls, maintaining quiet operation in Comfort mode and unleashing full performance in Sport mode. Benefits Reuses stock tips or upgrades to quad tips for personalized styling. Enhances sound with a rich, aggressive tone while remaining refined. Improves performance with optimized flow and larger diameter piping. Offers a completely reversible, bolt-on solution with no permanent modifications. Maintains OEM valve control for an ideal balance of sound and comfort. Fitment: 2019-2025 BMW M340i / M440I & Xdrive

The items installed or applied to vehicles are intended strictly foroff-road use onlyandtrack vehicles. These modifications may not comply with emissions, safety, or environmental regulations required for public road use underEnvironmental Regulatory Agency (ERA)laws. It is the sole responsibility of the vehicle owner or operator to ensure adherence to all applicable local, state, and federal regulations. Use on public roads may result in legal penalties or vehicle impoundment. Always verify compliance with local authorities before installation.

We get a large number of custom orders and requests everyday, so as a result it is not always possible for us to keep every item in stock at all times in our warehouse. If you require the item urgently please contact our sales team here to check the stock before you make your purchase.

If you're unsure whether a part will fit your vehicle, feel free tocontact us herewith your inquiry. Our helpful sales team will reach out to confirm if it's the right match for you.

We offer a flat-rate shipping fee across thecontinental United States. This excludes Alaska, Hawaii, and U.S. territories. For international orders, additional shipping costs will apply. Please contact us for a quote if you are outside the continental U.S.

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Not all items are covered by warranty. Items including warranty, will clearly state that there is warranty within the product description. Most of these items will be a standard 1-year warranty against manufacture defects. You, the customer, will be responsible for shipping and handling. We will fix/replace that item with a product that is in working condition if you meet the warranty criteria. Please note that you will be allowed ONLY 1 claim within the year for that product. ColoradoN5X is not responsible for any damage caused during the installation of our products.