Valvetronic Stainless Steel Equal Length Exhaust System For F9X BMW X3M/X4M

Precision Engineering. Distinctive Sound. Total Control.

For those who demand an unrivaled exhaust experience from their BMW X3M or X4M, Valvetronic Designs has created a system that blends precision engineering, raw emotion, and absolute control. Built with a deep understanding of the BMW M community, this exhaust not only boosts performance but also transforms the character of the S58 engine—delivering a visceral and exhilarating sound every time you drive.

Choose Your Sound Profile

Single Mid-Pipe Configuration

The raw, unfiltered S58 experience. This design enhances the factory sound characteristics while unlocking a deeper, more aggressive tone. Expect:

• Enhanced clarity and volume
• Punchy, M-car exhaust note
• Improved flow and responsiveness

Perfect for drivers who want their X3M/X4M to make a bold statement with every start-up and wide-open throttle pull.

Equal-Length Resonated Full Exhaust

For those seeking something truly special, our equal-length resonated configuration delivers a refined, exotic tone. By balancing exhaust pulses, this system eliminates uneven frequencies, producing a smooth, motorsport-inspired sound reminiscent of high-end European supercars. Ideal for enthusiasts who want both performance and a unique acoustic signature.

Engineered Without Compromise

• Factory-Integrated Valves: Electronic valves tie directly into the OEM M1/M2 drive modes for instant sound control.
• Independent Control Option: Included standalone controller for complete manual control of your exhaust valves.

Material Options:

• T304 Stainless Steel – Extreme durability, resistance to corrosion, and a rich tone.
• Grade 5 Titanium – Ultra-lightweight, sharper tone, and superior heat resistance.
• True Cat-Back Performance: Complete replacement of the factory cat-back for measurable gains in power, throttle response, and overall sound dynamics.

Why Valvetronic Designs?

• We don’t just build exhaust systems—we create driving experiences. Every product we engineer is the result of relentless R&D, with a single mission: to give enthusiasts the ultimate sound, performance, and quality.
• Whether you choose the ferocious Single Mid-Pipe System or the supercar-like Equal-Length Resonated System, you’ll be rewarded with an unparalleled auditory experience—turning every drive into an event.

Features

• Constructed from T304 Stainless Steel or Grade 5 Titanium
• OEM valve integration with optional independent controller
• Equal-length or single mid-pipe configurations
• Fully mandrel bent for maximum flow
• Precision TIG welds for strength and durability
• 100% reversible—return to stock at any time

Fitment

• BMW F97 X3M (2019–Present)
• BMW F98 X4M (2019–Present)