Mid-length Headers for Mercedes E550 CLK550 CLS550 SL550 M273 V8 NA

Transform your Mercedes-Benz M273 engine with our High-Flow Mid-Length Performance Headers. Engineered to cut backpressure and maximize airflow, these headers unlock serious horsepower, torque, and a deeper, more aggressive exhaust note. Perfect for naturally aspirated and supercharged M273 V8s — including E550, CLS550, SL550, CLK550, S550, and CL550.

⚙️ Performance Benefits

• ✅ High-Flow Design: Reduced exhaust restriction for maximum gains
• 🚗 Dyno-Proven Power: +38 hp and +39 ft/lb of torque
• 🔊 Enhanced Exhaust Tone: Deeper, throatier sound under throttle
• 🔧 Optimized Piping: Wide diameter for top-end power and torque balance
• 🌍 Global Fitment: Works with both LHD and RHD models
• 🛠️ 3-inch Outlet Pipe: Large outlet for maximum flow and easy exhaust connection

📦 Model Compatibility

We can also add OEM gaskets and studs for $180 extra.

Pair with Custom ECU Tune for the M273 to maximize gains

💎 Why Buy from BenzUnited Parts?

• 🔩 Trusted by performance tuners & Mercedes enthusiasts worldwide
• 📦 Fast shipping, responsive support, and fitment guarantee
• 🔍 Rare and high-performance parts sourced with precision

⚠️ For off-road and racing use only. Not legal for highway use in emissions-restricted states. Professional installation with welding is required.

✅ Ships within 1–2 business days. Packaged securely.