WSTN BMW S58 M2/M3/M4 200 Cell High Flow Catted Downpipes (G80/G81/G82/G83/G87)

Want more power without ditching emissions control?

WSTN Performance 200 Cell Catted Downpipes are designed specifically for BMW’s M2/M3/M4 models with the S58 3.0L twin-turbo powered engines. These high-flow, street-friendly downpipes replace the factory catalytic converter with a 200-cell motorsport-grade unit, unlocking turbo response and performance while retaining a refined tone and daily drivability.

Built from full stainless steel and wrapped in OEM-style heat shielding, this unit delivers track-ready gains without triggering check-engine lights when paired with proper tuning.

Why Upgrade?

✅ 200 Cell High-Flow Catalyst – Maximum flow with emissions balance

✅ Stainless Steel Construction – Full corrosion and heat resistance

✅ OEM-style Thermal Shielding – Keeps engine bay temps under control

✅ Mandrel-Bent Piping – Smooth, unrestricted exhaust flow

✅ CNC Flanges & TIG Welds – Precision fitment and durability

✅ No CEL with Tune – Compatible with Stage 2+ tuning platforms

✅ Bolt-On Fitment – No cutting, no welding

✅ 1-Year Warranty – Guaranteed workmanship and materials

Fitment & Compatibility

✔️ BMW M2 (G87, S58) — 2022 +

✔️ BMW M3 (G80, S58) — 2020 +

✔️ BMW M3 (G81, S58) — 2022 +

✔️ BMW M4 Coupe (G82, S58) — 2020 +

✔️ BMW M4 Convertible (G83, S58) — 2020 +

Compatible with both RWD and xDrive variants

In the Box

• 1 × WSTN Performance 200 Cell Catted Downpipe set (Heat-Shielded)

• Fitting Kit (Gaskets and Bolts if permitted)

Installation

🛠 Fitment: Direct bolt-on for S58 engine vehicles

⏱ Time: 2–3 hours

🔧 Recommendation: Professional install and ECU tune recommended for maximum power and efficiency

Why WSTN Performance?

✅ Genuine T304 stainless steel — no mild-steel or coated substitutes

✅ Precision-engineered specifically for the S58 platform

✅ Build quality equal to leading global performance brands—without the inflated price

✅ 1-Year Warranty on materials and workmanship

Power You Can Use — Every Day

Sharper response. Deeper tone. Street-ready flow.

Upgrade your G8X with WSTN’s 200 Cell Catted Downpipe and enjoy performance without the penalty.

Enjoy the convenience of worldwide shipping on all products.

If upon receiving your product you wish to return it, we offer a 30-day returns policy.

All items must be in new or resalable condition to be eligible for return.

For our in-depth returns information please follow the link below.

"WSTN Performance Shipping And Returns" 

SHIPPING INFORMATION

- We deliver Worldwide

- Most of our products are sent via express methods worldwide (FeDex, DHL, Express Post etc.)

- Full tracking free with every order.

Read more here.

Please note that WSTN Performance recommends installation by trained professionals

We highly recommend having all our products installed by a trained professional who possesses the necessary expertise and utilises the correct tools.

By entrusting the installation to an experienced professional, you can ensure optimal performance and minimise the risk of any potential damage.

WSTN Performance is not liable for any damages caused when installing our products or for potential damages

Your satisfaction and the safety of your vehicle are our top priorities.