Exhaust Headers for Mercedes Benz S500 (1999-2006) 5.0L V8

High-Flow Exhaust Headers for 1999-2006 Mercedes Benz S-Class (M113 / W220)

Application: Replaces restrictive factory exhaust manifolds with mid-length, high-flow headers to significantly reduce exhaust gas back pressure and optimize cylinder scavenging.

The Stock S-Class Exhaust Restriction

OEM Mercedes-Benz W220 exhaust manifolds are designed primarily for packaging efficiency and strict emissions compliance, utilizing narrow, cast-log style runners. This restrictive factory configuration creates substantial exhaust gas back pressure, increasing heat soak in the engine bay and limiting the volumetric efficiency of the 5.0L V8. The choked flow inherently restricts the engine's natural exhaust scavenging capability, stifling upper-RPM horsepower and muting the authentic exhaust note of the naturally aspirated M113 architecture.

The Engineering Solution

These mid-length aftermarket headers resolve factory bottlenecks by utilizing wider diameter tubing and optimized flow paths, specifically engineered to lower back pressure and accelerate exhaust gas velocity. By removing the immediate obstruction post-exhaust port, these headers enhance cylinder evacuation, allowing the engine to breathe effectively. Naturally aspirated V8s typically gain 7 to 10 percent in horsepower and torque, while supercharged applications can yield up to a 15 percent increase. These header kits include downpipes and require professional TIG or MIG welding to mate seamlessly with your existing exhaust system.

Technical Specifications

Compatibility & Installation Notes

• Fits LHD and RHD vehicles.
• Mercedes-Benz SL55 AMG
• Mercedes-Benz CLS55 AMG
• Mercedes-Benz E55 AMG
• Mercedes-Benz C55 AMG
• Mercedes-Benz SL500 AMG
• Mercedes-Benz CLS500 AMG
• Mercedes-Benz E500 AMG
• Notice: Competition use only. Off-road certification required.


• Chassis Specific Installation Warnings:
• W211 (E-Class) → Steering shaft interference common
• W220 / C215 (S / CL) → Subframe clearance issues
• R230 (SL) → Tight around transmission tunnel
• W203 (C55 AMG) → Extremely tight engine bay

The Mercedes Benz Precision Standard

Engineered for the rigorous demands of European performance tuning, these headers provide the precise exhaust flow dynamics required to extract maximum horsepower and an aggressive exhaust note, without triggering restrictive OEM performance safeguards.