BMW S58 Downpipe - G80 M3, G82 M4, G87 M2 (G8X)

Unlock peak performance, sharper throttle, and aggressive exhaust tone with the MTech Performance S58 Downpipe.

🔧 Product Overview

The MTech Performance S58 Turbo Downpipe is a precision-engineered upgrade designed for all BMW G8X models equipped with the twin-turbocharged S58 inline-6 engine. This includes the G80 M3, G82/G83 M4, and the G87 M2. Whether you're chasing power or sound, this catless downpipe is your go-to performance mod.

Expect increased horsepower, torque, improved turbo response, and a deeper, more aggressive exhaust tone, all without requiring an ECU tune for installation.

📌 Compatible BMW Models

• 2021-Present BMW G80 M3 (S58 engine)
• 2021-Present BMW G82 / G83 M4 Coupe & Convertible (S58 engine)
• 2023-Present BMW G87 M2 (S58 engine)

💥 Performance Benefits

• Increased Horsepower & Torque: Frees up backpressure and flow for more usable power at all RPMs.
• Improved Turbo Spool: Quicker throttle response and reduced lag make the car feel sharper and more responsive.
• Enhanced Exhaust Sound: Deeper, throatier note under acceleration with a true M-car tone, no rasp or drone.
• No Tune Required: Direct bolt-on install with factory components. Tune recommended but not mandatory.

✅ Technical Specs

🛠 Installation & Fitment Notes

This downpipe is a direct bolt-on replacement for the OEM unit. No cutting, welding, or special tools required. Reuses factory mounting points and gaskets. Not CARB-approved; intended for off-road or racing use only in emissions-restricted states.

🔥 Why Choose MTech Performance?

Our S58 downpipes are built to deliver real-world performance gains, race-proven durability, and the sound every BMW M enthusiast craves. Whether you're daily driving, corner carving, or prepping for track days. This is one of the highest-impact upgrades you can install.

Let your M car breathe the way it was meant to.