Valvetronic Designs
Valvetronic BMW X3 / X4 M40i Valved Sport Exhaust System
Valvetronic BMW X3 / X4 M40i Valved Sport Exhaust System
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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.
Sound & Control
This system is designed for complete versatility:
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Valves Open: Full-throttle excitement with unrestrained volume and character.
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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.
Performance Benefits
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.
Fitment
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BMW G01 X3 M40i
Features
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Constructed from T304 Stainless Steel
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3.5-inch midpipe for optimal flow and sound
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Dual actuated valves for unmatched longevity and flexibility
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Includes standalone valve controller
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25.5 lbs lighter than the factory exhaust
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Fully mandrel bent for maximum flow efficiency
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Precision TIG welds for high strength and durability
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100% reversible—return to stock at any time
ECU tuning is the process of adjusting the engine control unit's software to enhance vehicle performance, efficiency, or fuel economy.
It can, depending on the manufacturer. Many warranties do not cover modifications like ECU tuning.
Use the highest octane fuel recommended for your specific tune to ensure optimal performance and safety.
Yes, a properly tuned car can be used daily, as long as the tune is tailored for reliable, everyday driving.
CPC (Central Powertrain Controller) and TCU (Transmission Control Unit) manage your vehicle's powertrain and transmission systems, respectively.
Map switching allows you to change between different tuning settings (maps) for varying driving conditions without having to retune the ECU.
Yes, if done by a professional using proper tools, ECU tuning is generally safe for your vehicle.
ECU tuning works by modifying the software that controls engine parameters like fuel mixture, ignition timing, and boost pressure to optimize performance.
The process of installing a tune depends on the vehicle’s make and model. Some tunes are installed by connecting a tuning device to your car’s OBD-II port and uploading the tuned software, others may require ECU unlock.
Stage 1 is for vehicles with no modifications, stage 2 is for vehicles with bolt-on upgrades or downpipes installed.
We offer post-installation support, troubleshooting, and guidance on using your tuning software and hardware.
Choose tuning software that is compatible with your vehicle, has good reviews, and suits your performance goals (e.g., reliability vs. max power).
