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
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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).
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Optional 90mm Quad Tip Upgrade: Choose from three 90mm quad tip options for a sporty look. This upgrade requires removing the OEM tips.
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Full Catback Design: A complete system offering a richer, more aggressive sound profile to elevate your driving experience.
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Effortless Installation: This 100% plug-and-play system requires no cutting, ensuring a straightforward and completely reversible modification.
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Premium Materials: Constructed entirely from 304 stainless steel for unmatched durability and corrosion resistance.
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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
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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.
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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
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Reuses stock tips or upgrades to quad tips for personalized styling.
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Enhances sound with a rich, aggressive tone while remaining refined.
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Improves performance with optimized flow and larger diameter piping.
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Offers a completely reversible, bolt-on solution with no permanent modifications.
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Maintains OEM valve control for an ideal balance of sound and comfort.
Fitment:
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2019-2025 BMW M340i / M440I & Xdrive
