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The Valvetronic Designs Valved Exhaust System for the BMW G2X M340i and M440i is the ultimate upgrade for drivers who demand flexibility, performance, and an unforgettable exhaust note. Built with lessons learned from our most celebrated systems, this setup delivers a raw, unfiltered sound when you want it—and refined civility when you don’t.
From the moment you start the engine, you’ll experience the full potential of the B58 powerplant. The system begins with a massive 3.5" midpipe, splitting into unrestricted dual 3" mandrel-bent runs that flow seamlessly to a set of signature Valvetronic Designs tips.
Valves Open: Expect maximum drama—turbospool that’s impossible to ignore, aggressive overrun pops, and a motorsport-inspired tone that sings from idle to redline.
Valves Closed: The volume drops by over 25 decibels, transforming the system into a docile, daily-drivable setup perfect for early morning starts or long highway cruises.
Maximum Flow Design: 3.5" front section feeding dual 3" rear piping for unparalleled performance and tone.
Unmatched Versatility: Dual pneumatic valves deliver instant transitions from stealth to sport.
Premium Build Quality: T304 stainless steel construction with precision TIG welds ensures durability and a flawless finish also available in Grade 5 titanium
2019–2026 BMW M340i (G20)
2019–2026 BMW M440i (G22)
Constructed from T304 stainless steel or Grade 5 titanium
3.5" midpipe for maximum sound and flow
Dual pneumatic-actuated valves for longevity and precision control
21.7 lbs lighter than factory exhaust
Fully mandrel-bent for maximum flow
Precision TIG welds for strength and durability
100% reversible—return to stock at any time
Warranty Coverage
All products manufactured by Valvetronic Designs are guaranteed to be free from manufacturing defects in materials and workmanship at the time of sale. A manufacturing defect is defined as any characteristic of the product that arises during the manufacturing process which impairs its usability for the purposes for which it was designed and manufactured.
Products are guaranteed to fit and function as designed on their intended vehicle application, provided the vehicle has not been modified or incurred structural damage. Sound or tone is not a warrantable or returnable issue, as exhaust sound is subjective and not considered a defect.
Warranty Periods
Warranty Terms
FULL WARRANTY POLICY CAN BE FOUND HERE
Overall rating: 4.9166665 / 5 from 36 reviews.
The BMW M340i/M440i Valved Sport Exhaust System offers a powerful and versatile sound experience, with a dramatic increase in volume when the valves are open and a significant reduction when closed. It features a maximum flow design, unmatched versatility, and premium build quality, making it a top choice for drivers seeking both performance and control.
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"I’ve already picked up some clamps from the closest store. Regarding the cable issue, it arrived damaged. Thankfully, the box was tucked in, so it was just the red cable that was affected. Other than that, I didn’t have any other complaints."
"I like it so much the design and all the piece of exhaust all clean and nice. The bigger inch like anaconda in your car the sound hit differenly, you can make quiet or wild the sound with the Valve. Im very happy with my purchase. Thank you VD"
"The system was easy to install, the steel used and the welds are really good. And it’s sounds amazing when the valves are open and is really quiet when they are closed. I’ve had the system now for over a year and still looks new."
"Had in professionally install by Hollywood Garage, the ability to open or close the valves is amazing. Loud when wanted and quiet when needed. Highly recommend to anyone looking for a nice tone."
"Fitment is perfect, quad tips look amazing. The exhaust closed makes it sound quieter than the stock exhaust. When it’s open it definitely sounds insane. Was debating the purchase a lot but I don’t regret it."
"It was great packaging and fast delivery"
"I love how they dont charge for shipping and how quick i got my product, will definitely buy from them again !!"
"Amazing"
"The best sound and build quality"
"is this exhahaust legal for switzerland?"
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