Mercedes-Benz C180 / C200 / C300 / E200 / E260 / E300 / GLK260 M274 Catless Downpipe (2015+)

Maximum Exhaust Flow. Enhanced Turbo Response. Unleash M274 Performance.

Unlock the performance potential of your Mercedes-Benz with the SimuFlow Catless Downpipe, engineered for compatible Mercedes-Benz C-Class, E-Class, and GLK-Class models equipped with the 1.6L or 2.0L M274 turbocharged four-cylinder engine.

Designed to eliminate the restrictions of the factory catalytic converter, this high-performance downpipe provides a more direct exhaust path, helping reduce backpressure, improve turbocharger efficiency, and deliver a louder, more aggressive exhaust note.

Whether you’re upgrading your Mercedes-Benz with performance modifications, building a more responsive turbocharged setup, or preparing your vehicle for dedicated track use, the SimuFlow Catless Downpipe is designed to support increased exhaust flow and demanding performance applications.

Key Features

• High-Flow Catless Design: Eliminates the factory catalytic converter to reduce exhaust restriction and maximize exhaust flow.
• Turbocharged Performance: Designed to support the exhaust demands of Mercedes-Benz’s M274 turbocharged four-cylinder engine.
• Enhanced Turbo Response: Reduced exhaust backpressure can support quicker turbo spool and sharper throttle response.
• Optimized Exhaust Efficiency: Promotes improved exhaust gas evacuation, particularly under increased boost pressure.
• Aggressive Exhaust Sound: Produces a louder, deeper exhaust note with enhanced turbocharger sound.
• Performance Tuning Potential: Designed to complement performance ECU calibrations and supporting engine modifications.
• M274 Platform Compatibility: Intended for compatible Mercedes-Benz C-Class, E-Class, and GLK-Class applications equipped with the M274 engine.

Performance Benefits

Maximum Exhaust Flow

The catless design removes the restriction of the factory catalytic converter, allowing exhaust gases to exit the turbocharger more efficiently. This helps reduce backpressure and supports improved exhaust performance under demanding driving conditions.

Enhanced Turbocharger Efficiency

Reducing exhaust restriction can help the M274 turbocharger operate more efficiently, particularly on modified vehicles running increased boost pressure or performance ECU calibrations.

Aggressive M274 Exhaust Note

Experience a louder, more pronounced exhaust tone, enhanced turbocharger sound, and the distinctive character of Mercedes-Benz’s turbocharged four-cylinder engine.

Vehicle Compatibility

• Mercedes-Benz C180: W205 — M274-equipped models only
• Mercedes-Benz C200: W205 — M274-equipped models only
• Mercedes-Benz C300: W205 — M274-equipped models only
• Mercedes-Benz E200: W212 / W213 — M274-equipped models only
• Mercedes-Benz E260: W212 / W213 — M274-equipped models only
• Mercedes-Benz E300: W212 / W213 — M274-equipped models only
• Mercedes-Benz GLK260: X204 — M274-equipped models only
• Engine: Mercedes-Benz M274 1.6L / 2.0L Turbocharged Inline-Four
• Configuration: Catless Downpipe
• Advertised Model Years: 2015+ (subject to engine and chassis compatibility)

Note: Fitment varies by chassis, production year, engine variant, drivetrain configuration, and factory emissions equipment. Not all listed models use the M274 engine, and some transitioned to newer engine platforms. Confirm the exact engine code and downpipe compatibility before purchasing.

Important Information

• For competition/off-road use only where legally permitted.
• This downpipe removes the factory catalytic converter and is not legal for installation or use on pollution-controlled vehicles on public roads in the United States.
• Professional installation is strongly recommended.
• Installation may trigger a check engine light due to the removal of the factory catalytic converter.
• ECU calibration may be required depending on the vehicle’s configuration.
• Exhaust sound and performance characteristics may vary depending on existing modifications.
• Verify exact vehicle compatibility before purchasing.

Shipping & Delivery

Estimated Delivery Time: 15 Days

Your SimuFlow Catless Downpipe is carefully prepared and shipped to ensure it arrives safely and in excellent condition.

Please allow approximately 15 days for delivery from the date your order is placed. Delivery times may vary slightly depending on your location and shipping conditions.