BMW F80/F82, M3/M4 Stainless Steel Valved Catback Exhaust

BMW F80/F82 M3/M4 Stainless Steel Valved Performance Exhaust

Transform the sound, character, and driving experience of your BMW F80 M3 or F82/F83 M4 with this Stainless Steel Valved Performance Exhaust System — engineered to deliver improved exhaust flow, enhanced turbo acoustics, and the deep, aggressive soundtrack the S55 engine deserves.

Designed specifically for the twin-turbocharged 3.0L S55 platform, this valved exhaust system provides the perfect balance between everyday comfort and exhilarating performance. With the valves closed, the exhaust delivers a refined and controlled tone suitable for daily driving. Open the valves, and the system unleashes a deeper, louder, and more aggressive exhaust note with enhanced turbo sound and sharper gear changes. Similar S55 valved exhaust systems are designed to reduce the harsh rasp often associated with the factory setup while producing a deeper, more refined performance tone.

Constructed from premium T304 stainless steel, this exhaust system offers exceptional durability, corrosion resistance, and long-term reliability under demanding driving conditions. Precision TIG welding and mandrel-bent tubing ensure optimal exhaust flow and a perfect OEM-style fitment.

Whether you're running a stock vehicle, upgraded downpipes, or a full Stage 2 build, this Stainless Steel Valved Performance Exhaust is one of the most rewarding upgrades available for the F8X platform.

Key Features

Valved Exhaust Technology

Switch seamlessly between a refined cruising mode and an aggressive performance exhaust note at the touch of a button.

Premium T304 Stainless Steel Construction

Manufactured from high-quality stainless steel for exceptional strength, heat resistance, and corrosion protection.

Improved Exhaust Flow

Optimised piping design helps reduce restrictions and improve overall exhaust efficiency.

Enhanced S55 Sound Profile

Delivers a deeper, smoother exhaust note while reducing unwanted harshness and rasp commonly associated with the S55 engine.

Precision TIG Welded

High-quality welds designed to withstand high temperatures and demanding performance applications.

Direct Bolt-On Fitment

Engineered specifically for the BMW F80/F82/F83 platform using factory mounting locations.

Performance Benefits

• Improved exhaust flow efficiency
• Enhanced throttle response
• Increased turbo acoustics and spool noise
• Reduced exhaust restriction
• More engaging driving experience
• Perfect supporting modification for tuned and performance-focused vehicles

Performance gains may vary depending on supporting modifications and vehicle configuration.

Sound Characteristics

Valves Closed

• Refined and comfortable cruising tone
• Minimal cabin drone
• Ideal for daily driving and long-distance travel

Valves Open

• Deep and aggressive exhaust note
• Increased turbo spool and whistle acoustics
• Enhanced crackles and overrun sounds (where applicable)
• Sharper gear change acoustics
• Greater overall exhaust presence throughout the rev range

Vehicle Fitment

BMW F80 M3 (2015–2020)
BMW F82 M4 Coupe (2015–2020)
BMW F83 M4 Convertible (2015–2020)

3.0L Twin-Turbocharged S55 Engine

Please Note

Professional installation is strongly recommended.

Exhaust sound characteristics may vary depending on factory or aftermarket downpipes, mid-pipes, and other supporting modifications.

Why Choose Proven Performance Parts

We specialise in high-performance parts for European vehicles — including Volkswagen GTI & R models, Audi S/RS platforms, and BMW M vehicles. Every product we offer is carefully selected for its quality, fitment, and real-world performance — tested by enthusiasts, for enthusiasts.