SKU: 38903625190

Valvetronic Design BMW G29 Z4 M40i Valved Sport Exhaust System

Sale price$1214.55 Regular price$1349.50
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Ships within 48 hours · Estimated delivery Jul 10 - Jul 15

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Description

Valvetronic Design BMW G29 Z4 M40i Valved Sport Exhaust SystemUnleash the true potential of your BMW Z4 M40i with the Valvetronic Designs Valved Exhaust Systema performance upgrade born from extensive research and development on the B58 powered platforms, including the Supra and M340i. At Valvetronic Designs, we dont believe in compromise, and we know you dont either. Thats why weve engineered the perfect exhaust setup to elevate both the performance and sound of your Z4 to an entirely new level. Engineered for

Unleash the true potential of your BMW Z4 M40i with the Valvetronic Designs Valved Exhaust System—a performance upgrade born from extensive research and development on the B58-powered platforms, including the Supra and M340i. At Valvetronic Designs, we don’t believe in compromise, and we know you don’t either. That’s why we’ve engineered the perfect exhaust setup to elevate both the performance and sound of your Z4 to an entirely new level.

Engineered for the Ultimate Sound Experience

Our exhaust system features a single 3 1/2-inch midsection, seamlessly transitioning into a dual 3-inch configuration all the way to the exhaust tips. This optimized layout significantly improves exhaust flow, enhancing both throttle response and overall engine performance. But it’s not just about power—it’s about delivering the perfect soundtrack. Inspired by our work on the legendary B58 Supra and the M340i, we’ve meticulously tuned the system to deliver a rich, aggressive tone that’s powerful on the throttle yet refined when cruising. The result? A full-bodied exhaust note that matches the performance of your BMW.

Precision Engineering for Peak Performance

We know the importance of a balanced exhaust system in unlocking the full potential of your car. Our Z4 M40i system is designed to minimize restriction, maximizing power and torque while also enhancing the driving experience. The integration of valves allows you to control the sound profile—whether you want a quiet, civilized drive or a spine-tingling roar, the choice is yours at the touch of a button.

Uncompromising Quality

At Valvetronic Designs, our mission is simple: to provide BMW enthusiasts with the best exhaust systems on the market. With years of refinement from platforms like the B58 Supra and M340i, we’ve perfected the art of creating exhausts that not only perform, but also produce the ideal acoustic experience. The result is an exhaust that offers superior flow, performance gains, and a sound that will excite every time you start your engine.

We don’t compromise on quality, and neither should you. Our systems are crafted using the highest quality materials, rigorously tested to ensure the best performance and reliability. With the Valvetronic Designs G29 Z4 M40i Valved Exhaust, you're not just upgrading your exhaust—you're transforming your driving experience.

Elevate your Z4’s sound, performance, and style with the exhaust system that enthusiasts trust. Choose Valvetronic Designs. Because your BMW deserves the best.

Fitment

  • 2017+ BMW G29 Z4 M40i

Features of this Valved Exhaust

  • Fully Mandrel bend for maximum flow
  • Precision tig welds for high strength
  • Built from T304 Stainless Steel
  • Beautiful tips to compliment your Z4's build
  • Vacuum actuated valves
  • 11.1 lbs. Lighter than factory exhaust
  • 100% REVERSIBLE, always able to go back to stock at any time

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 38903625190

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4.1 ★★★★★
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R. Fleming
Fort Morgan, US
★★★★★ 3
Not What I Expected
Color: White, Size: 32 inches
This set of floating shelves was a disappointment. They’re advertised as holding 20 pounds, but mine began to bend with barely 10 pounds on them. All the screws and anchors were installed tightly and correctly, yet the metal brackets still warped under minimal weight. The shelves look fine on the wall, but I’m leaving them up only because I don’t want to patch a dozen holes—not because they’re sturdy. Definitely not the quality or strength I expected.
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Reviewed in the United States on April 13, 2026
A
Verified Purchase
Alicia
San Leandro, US
★★★★★ 5
Love them
Color: White, Size: 15 inches, Color: White, Size: 15 inches
I have these floating shelves all over my house. The are made nice and sturdy and they come with simple instructions. They come it various sizes and can almost fit anywhere. These particular shelves are in my makeup closet and they look so great and organized.
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Reviewed in the United States on December 24, 2025
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Verified Purchase
callme1040
Lowell, US
★★★★★ 5
Exceeds my expectations
Color: White, Size: 24 inches, Color: White, Size: 24 inches
Easy to install, exceeds my expectations. I’d buy it again.
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Reviewed in the United States on April 29, 2026
M
Verified Purchase
Miah
Dallas, US
★★★★★ 5
Solid Floating Shelves 🛠️🏠
Color: Black, Number Of Shelves: 4, Size: 15.7in
I have installed four sets of the black floating shelves in my office. They are made of high quality materials, featuring a sophisticated black woodgrain finish with a natural texture. Supposedly, each unit can handle up to 22 pounds, though I would not recommend testing that limit with your vintage bowling ball collection if you value your flooring. They are awesome. The value is good for a set of two. Each shelf measures 22x7x1 (56x17x3 cm) inches, providing a decent amount of storage for books or decor. The installation was straightforward since the hardware for multiple wall types was included. They work well in the kitchen for spices or in the bedroom for personal belongings. One tip for a secure fit: use a level during installation and make sure the bracket is flush against the wall before sliding the shelf on, or your photos might look like they are sliding off a mountain 📐 These shelves offer a clean, modern look and stay stable once mounted correctly. They are a practical choice for adding functional display space to any room 🖼️
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Reviewed in the United States on May 4, 2026
T
Verified Purchase
Tyler Kline
Birmingham, US
★★★★★ 5
Good looking shelves and easy install - skip the included drywall anchors
Color: Black, Number Of Shelves: 2, Size: 22in
I installed these shelves in a bedroom to get things off my dresser and some decor. Once mounted they look really nice. The black finish looks clean and modern and they blend in well with the room. Installation was pretty straightforward. The metal bracket mounts to the wall first and then the shelf slides over the bracket. As long as you take your time lining things up it’s a simple project. One thing I strongly recommend is not using the white plastic self-drilling drywall anchors that come with the kit. I’ve used that style before on other projects and they tend to strip out easily and leave larger holes in drywall. I used better anchors instead and the shelves mounted much more securely. The rest of the hardware worked fine and once installed the shelves feel solid and hold items well. Pros - Clean modern look - Easy installation - Feels solid once mounted - Good size for books or decor Cons - The small level included isn’t very accurate — use your own level - One of the metal brackets was slightly bent out of the box but straightened out easily Helpful tip: Use your own level and better drywall anchors if you have them. It makes installation easier and the shelves will mount much more securely. Final thoughts: For the price these are nice looking floating shelves that install easily and work well for light storage and decor.
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Reviewed in the United States on March 13, 2026

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