PRODUCT SPECIFICATION

• Material: Precision-crafted from high-grade T304 stainless steel for exceptional strength, long-term durability, and superior resistance to corrosion – unlike mild steel alternatives used in many systems.

• Valvetronic Control: Electronically actuated valve system with remote control included. Switch between a refined tone and an aggressive exhaust note on demand – all from the driver's seat.

• Pipe Diameter: Full 3.5" mandrel-bent piping, designed to optimise exhaust flow, minimise backpressure, and unleash the full potential of your S58 engine.

• Exhaust Tips: Dual-walled black chrome tips for a clean, motorsport-inspired finish.

• Performance Benefits: 11kg lighter than the factory system, sharper throttle response, deeper tone, and a more engaging driving experience from startup to redline.

Whether you're pushing hard on backroads or enjoying a spirited cruise, this system delivers balanced volume and raw performance – without compromise.

If you’ve got questions, reach out any time – our team is ready to help.

IN THE BOX

• 1 x WSTN Performance Valved Exhaust System

• 1 x Remote control for electronic valve operation

• Full fitting kit (gaskets, clamps, bolts)

COMPATIBILITY

• BMW G80 M3 Sedan (2020+)

• BMW G82 M4 Coupe (2020+)

• BMW G83 M4 Convertible (2020+)

Direct bolt-on fitment – no cutting or welding required.

INSTALLATION NOTES

This is a direct replacement for the factory system and mounts cleanly to OEM points. To ensure precise valve function and sound tuning, we recommend professional installation by a trusted exhaust or performance specialist.

Why WSTN Performance?

• Real Stainless Steel: We only use T304 stainless – not mild steel, not coated alternatives. It lasts longer and sounds better.

• Made to Fit, Built to Perform: Designed for precise fitment and engineered for true gains – both in sound and performance.

Looking for the best way to bring your M car to life?
This is it – refined when you need it, brutal when you want it.

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.

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.