BenzUnited Parts
Mid-length Headers for Mercedes CLK550 E550 CLS550 SL550 M273 V8 NA
Mid-length Headers for Mercedes CLK550 E550 CLS550 SL550 M273 V8 NA
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Unleash the Power of Your M273 V8
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
- 🛠️ Installation: Welding required to integrate with factory exhaust
📦 Model Compatibility
| Model | Engine | Years |
|---|---|---|
| SL550 | M273 V8 | 2007–2011 |
| CLS550 | M273 V8 | 2007–2011 |
| CLK550 | M273 V8 | 2007–2009 |
| E550 | M273 V8 | 2006–2011 |
| S550 | M273 V8 | 2007–2011 |
| CL550 | M273 V8 | 2007–2010 |
🔥 Limited batch available — secure yours before stock runs out!
Pair with our Custom ECU Tune for the M273 to maximize power gains and throttle response.
💎 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 and insured.
