Unleash the full acoustic and performance potential of your BMW G8X M2, M3, or M4 with our Toroing GT4 Style High-Flow Equal-Length Midpipe—a precision-engineered upgrade inspired by motorsport, built for the street.
Designed specifically for the S58 engine, this midpipe features true equal-length piping that balances exhaust pressure across both turbochargers. As opposing exhaust pulses synchronize within the tuned pathways, they merge into a harmonized frequency, creating a uniquely sharp and high-pitched exhaust note.
Bernoulli-effect counterflow design. The result: seamless power delivery, smoother transitions, and the elimination of harsh gearshift crackles.
Crafted using CNC-formed molds and a single-piece mandrel-bent structure, welds are minimized, and internal surfaces are polished to reduce turbulence. At high RPMs—especially near 7000—the exhaust tone pierces through the air with a sword-like resonance, while cabin resonance is suppressed for a clean, exhilarating experience.
A topology-optimized flow path paired with a modular resonator system ensures both performance and weight reduction. The sound profile is rich and deep at low revs, building to a crisp, naturally aspirated-style crescendo as the needle sweeps past 5500 RPM.
This is the mechanical symphony of turbocharged precision meeting high-revving emotion—a visceral embodiment of what makes internal combustion thrilling.
Key Features:
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GT4-inspired equal-length design tailored for S58 (M2/M3/M4)
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Enhanced exhaust harmonics via synchronized turbo pulse merge
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CNC-formed bends for optimal flow and minimal welding
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Internal smoothing to reduce turbulence and maximize high-RPM clarity
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Weight-saving modular resonator structure
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Deep low-end growl, razor-sharp high-end scream
Experience the sound of speed—refined, resonant, and unmistakably BMW M. This product is on rolling pre-order. Lead time is 2-3 weeks for delivery.
