SKU: 4145307563

Valvetronic Design BMW X3 / X4 M40i Valved Sport Exhaust System

Sale price$1304.55 Regular price$1449.50
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Ships within 48 hours · Estimated delivery Aug 20 - Aug 25

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Description

Valvetronic Design BMW X3 / X4 M40i Valved Sport Exhaust SystemWelcome everyone, to the ultimate exhaust experience for the BMW X3 X4 M40i At Valvetronic Designs, we believe in offering enthusiast the ultimate experience. That is why in our pursuit to develop engineer and deliver the worlds most enjoyable sound experience for the G01 platform, we have resulted in one of our finest systems yet. Utilizing many developments from our other systems, the maximum piping diameter is used so that you get the most raw and

Welcome everyone, to the ultimate exhaust experience for the BMW X3 / X4 M40i

At Valvetronic Designs, we believe in offering enthusiast the ultimate experience. That is why in our pursuit to develop engineer and deliver the worlds most enjoyable sound experience for the G01 platform, we have resulted in one of our finest systems yet. Utilizing many developments from our other systems, the maximum piping diameter is used so that you get the most raw and unfiltered sound experience when the valves are opened. When the valves are open, this system is as raw as it comes. Tons of turbospool, aggressive overrun, and an unfiltered aggressive sound that sings all the way from idle to red line. Fortunately, with the valves closed, the exhaust is extremely docile and perfect for a daily use. Over 25 dB of sound difference from valves open to valves closed means that you're enjoy enjoyment of your M40i will be unwavering as this exhaust system allows you to have that much needed flexibility. Its time to let that B58 sing. At Valvetronic Designs, we never compromise, and neither should you when it comes to choosing the best exhaust system for your M40i.

Features of this Valved Exhaust

  • Constructed from T304 Stainless Steel
  • 3.5 in midpipe for maximum sound and flow
  • Dual Actuated Valves for Unparalleled Longevity and Flexibility with standalone valve controller
  • 25.5 lbs Lighter than the factory exhaust
  • Fully Mandrel bend for maximum flow
  • Precision tig welds for high strength
  • 100% REVERSABLE, 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: 4145307563

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4.4 ★★★★★
Based on 23 reviews
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K
Verified Purchase
KaDi
Bozeman, US
★★★★★ 4
Cute and comfortable!
Size: 6.5, Color: Chestnut
These are cute and surprisingly comfortable! My arches feel supported and the soles don’t feel as block-like as other platform style sandals! Things to note: The footbed liner is not made of suede and is a little slippery. It’s like a neoprene liner which was unexpected for an Ugg shoe. Also, I only intend to wear these sandals as slides (a la Birkenstocks) so the “adjustable” Velcro strap over the top part of the foot seems useless. It doesn’t snug the top down at all, functionally speaking it is only to wear around the back of the ankle. Maybe this matters to someone thinking they could tighten the top down a bit. The ankle strap is comfortable but could be a bit longer. Overall they are a cute option to the platform Birks that are very uncomfortable imo. Love the options to order half sizes. I’m usually a 6 in Ugg boots but ordered my regular shoe size 6.5 and they fit well. My heel would be at the very end of my sandal if I sized down. True to size. Keeping and will order in another color!
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Reviewed in the United States on May 28, 2025
J
Verified Purchase
Jess
Phoenix, US
★★★★★ 5
Comfy
The most comfortable Sandals I own!
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Reviewed in the United States on April 7, 2026
A
Verified Purchase
Avid Reader
Grantham, US
★★★★★ 5
More comfortable than flats!
Size: 8.5, Color: Bay Fog
I love these sandals! They run true to size, and they’re sooo comfortable. I was worried about getting fakes, but these were the real deal. The color is lovely (light purple). The foot bed can get dirty, but I find them to wash up nicely (by hand, not machine). I have purchased two more colors since! So much better than flats!
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Reviewed in the United States on November 9, 2025
S
Verified Purchase
Siyu
Battle Creek, US
★★★★★ 5
Comfy dual-mode sandals
Cute, quite comfy to walk in and love the support of the heel strap! It is not as comfy if using in slipper mode because the straps don’t keep your foot tight enough. I am usually a 8.5 but it runs slightly small so I switched up to a 9.
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Reviewed in the United States on June 25, 2025
A
Verified Purchase
Anapaula
Chelsea, US
★★★★★ 5
Love them
Size: 5.5, Color: Red Pepper
I have gotten so many compliments on these shoes! They’re true to size and comfortable. Because of the material feet might sweat easier if hot but they dry quick. Quality is great and the color looks good, it’s more of a orange/red color. I got a 5.5 size
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Reviewed in the United States on May 21, 2026

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