Valvetronic Designs BMW X3 / X4 M40i Valved Sport Exhaust System
or as low as $249.92/mo with Affirm
Available
Construction & Engineering
- Valves Open: Full-throttle excitement with unrestrained volume and character.
- Valves Closed: Refined and quiet, ideal for daily driving or early morning starts.
- With over 25 dB of difference between modes, you have complete control over your M40i's soundtrack thanks to the included standalone valve controller.
- Beyond the sound, this exhaust delivers improved exhaust flow, contributing to sharper throttle response and enhanced driving dynamics. The precision-engineered 3.5-inch midpipe ensures maximum flow for the B58 engine to breathe freely.
- Constructed from T304 Stainless Steel
- 3.5-inch midpipe for optimal flow and sound
- Dual actuated valves for unmatched longevity and flexibility
- 25.5 lbs lighter than the factory exhaust
Specifications
Sound & Video
Installation
VALVETRONIC DESIGNS
Valvetronic Designs BMW X3 / X4 M40i Valved Sport Exhaust System
BMW G01 X3 M40i Valvetronic Designs Valved Exhaust System Unleash the Full Potential of Your B58 Overview At Valvetronic Designs, we believe enthusiasts deserve the ultimate driving and sound experience. That's why our pursuit of perfection for the G01 platform has resulted in one of our finest exhaust systems to date. Engineered using lessons from our most successful designs, this system utilizes the maximum possible piping diameter to unlock a raw, unfiltered sound when the valves are open. The result? Explosive turbo spool, aggressive overrun, and an addictive tone that sings from idle to redline.
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FREQUENTLY ASKED QUESTIONS
If it's in stock and ready to roll, your order usually hits the road within 1–3 business days.
For made-to-order or specialty items (like carbon fiber parts or custom builds), the turnaround can take up to 8 weeks — perfection takes time.
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If your order ships via freight, you'll get a separate email with a direct link to the carrier's tracking page — easy and stress-free.
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