Description
Experience the ultimate in sound and performance with the Valvetronic Designs Valved Sport Exhaust System for the BMW X3 and X4 M40i. Specifically developed for the G01 and G02 platforms, this system is engineered to let your B58-powered SUV roar with unrestricted performance while maintaining refined sound control for daily usability.
Utilizing advanced development insights from other Valvetronic systems, this exhaust features a massive 3.5-inch midpipe, followed by optimized piping and a set of dual actuated exhaust valves. When the valves are fully open, you’ll experience pure, aggressive sound, intense turbo spool, and a sharp overrun that captures the full emotion of the B58 engine — from idle to redline.
For daily commuting or quiet neighborhoods, the system offers a remarkably tame tone with the valves closed. With over 25 dB of sound difference between open and closed positions, this setup offers the versatility M40i drivers crave. Whether you're tearing up a mountain pass or navigating city streets, you’ll have the ideal sound profile at your command.
Made entirely from T304 stainless steel, this system is precision TIG-welded and fully mandrel-bent to ensure maximum strength, longevity, and exhaust flow. It also features a standalone valve controller, giving you the flexibility to operate the valves independently of the factory ECU. At 25.5 lbs lighter than the OEM exhaust, it also provides a subtle weight-saving advantage that supports performance.
Valvetronic Designs stands by their commitment to quality and flexibility. This exhaust system is also 100% reversible, giving you peace of mind should you ever need to revert to a stock configuration.
Key Features:
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Constructed from high-quality T304 stainless steel
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3.5-inch midpipe ensures maximum exhaust flow and sound output
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Dual actuated valves with standalone controller for full manual control
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Over 25 dB difference between open and closed valve settings
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Precision TIG welds for structural strength and lasting durability
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Fully mandrel-bent piping for optimal airflow
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25.5 lbs lighter than the factory exhaust system
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100% reversible – easily return to stock setup if needed
Fitment:
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BMW X3 M40i G01 (All model years with B58 engine)
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BMW X4 M40i G02 (All model years with B58 engine)
Upgrade your BMW’s exhaust system with the Valvetronic Designs Valved Sport Exhaust for the X3 and X4 M40i — delivering unmatched flexibility, aggressive tone, and refined craftsmanship for the ultimate B58-powered experience.
