Mercedes Benz AMG W205 C63 Exhaust Downpipe

Unleash the full potential of your twin-turbo V8 with our High-Performance Exhaust Downpipe for the Mercedes-AMG W205 C63 and C63 S. Designed to drastically reduce exhaust backpressure and increase turbo efficiency, this downpipe upgrade delivers a noticeable boost in power, improved throttle response, and a more aggressive exhaust note.

Whether you're running a stock tune or pushing higher boost levels with custom software, this downpipe is the foundation for unlocking real performance from your M177-powered AMG.

Key Features:

• High-Flow Design for Maximum Performance
  Significantly improves exhaust gas flow by replacing restrictive OEM catalytic sections, helping turbos spool faster and reducing EGTs (exhaust gas temps).

• T304 Stainless Steel Construction
  Built from mandrel-bent, TIG-welded 304 stainless steel for high durability, corrosion resistance, and long-term reliability under extreme heat and pressure.

• Optional High-Flow Cats or Catless Versions
  Available with 200-cell high-flow catalytic converters for improved emissions compliance, or as a catless race-only setup for maximum flow and sound.

• Precision Fitment & CNC Machined Flanges
  Engineered for a direct bolt-on installation with perfect alignment and sealing—no cutting or welding required. Retains factory O2 sensor locations.

• Enhanced Exhaust Sound
  Deepens and sharpens the AMG V8 note, delivering a more aggressive tone under acceleration and satisfying turbo spool sounds.

• Dyno-Proven Gains
  Gains of +20–30 HP on stock tune, and significantly more with ECU remapping or tuning software.

• Supports Stage 1/2 Tunes
  Ideal companion for performance tunes from major ECU tuning platforms.

Vehicle Compatibility:

• 2015–2021 Mercedes-Benz C63 AMG (W205) – M177 4.0L Biturbo V8

• 2015–2021 Mercedes-Benz C63 S AMG (W205) – M177 4.0L Biturbo V8
  (Sedan, Coupe, and Cabriolet variants)