{"product_id":"exhaust-headers-for-mercedes-benz-e55-amg-2003-2006-5-4l-supercharged-v8","title":"Exhaust Headers for Mercedes Benz E55 AMG (2003-2006) 5.4L Supercharged V8","description":"\u003ch2\u003eHigh-Flow Exhaust Headers for 2003-2006 Mercedes Benz E-Class (M113K \/ W211)\u003c\/h2\u003e\n  \n  \u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e These mid-length, weld-on exhaust headers replace the restrictive factory manifolds to drastically reduce exhaust back pressure and increase scavenging efficiency for M113 and M113K V8 engines.\u003c\/p\u003e\n  \n  \u003ch3\u003eThe Stock W211 Exhaust Restriction\u003c\/h3\u003e\n  \u003cp\u003eThe factory Mercedes-Benz exhaust manifolds on the M113 and M113K engines are notoriously crimped and restrictive, designed primarily for tight packaging and emissions compliance rather than maximum volumetric efficiency. The OEM log-style manifolds create severe exhaust gas back pressure, especially under heavy throttle, leading to elevated exhaust gas temperatures (EGTs) and significant heat soak. This bottleneck suffocates the supercharger's ability to move air efficiently out of the combustion chamber, artificially capping potential horsepower and muting the aggressive V8 exhaust note.\u003c\/p\u003e\n  \n  \u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n  \u003cp\u003eUpgrading to these mid-length, high-flow exhaust headers eliminates the factory bottleneck by utilizing wider primary pipes that optimize exhaust pulse velocity and cylinder scavenging dynamics. By smoothing out exhaust transitions and significantly reducing gas back pressure, cylinder clearing is drastically improved, lowering operating temperatures and fighting heat soak. For the supercharged M113K, this improved airflow translates to horsepower and torque gains of up to 15 percent, while naturally aspirated M113 variants see a solid 7 to 10 percent increase. The kit includes integrated downpipes to complete the high-flow transition. Note: Installation requires welding to your existing exhaust system, and clearance will be tight around critical chassis components like the W211 steering shaft.\u003c\/p\u003e\n  \n  \u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n  \u003ctable width=\"100%\" style=\"border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 14px;\"\u003e\n    \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e2003-2006 Mercedes Benz E-Class\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eEngine \/ Chassis\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eM113K (5.4L SC V8) \/ W211\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eStock Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e469 hp \/ 516 lb-ft (Approx)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/table\u003e\n \n  \u003ch3\u003eCompatibility\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eMercedes-Benz SL55 AMG\u003c\/li\u003e\n    \u003cli\u003eMercedes-Benz CLS55 AMG\u003c\/li\u003e\n    \u003cli\u003eMercedes-Benz E55 AMG\u003c\/li\u003e\n    \u003cli\u003eMercedes-Benz C55 AMG\u003c\/li\u003e\n    \u003cli\u003eMercedes-Benz SL500 AMG\u003c\/li\u003e\n    \u003cli\u003eMercedes-Benz CLS500 AMG\u003c\/li\u003e\n    \u003cli\u003eMercedes-Benz E500 AMG\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \u003cp\u003e\u003cem\u003eFitment Notices \u0026amp; Chassis Clearances:\u003c\/em\u003e\u003c\/p\u003e\n  \u003cul\u003e\n    \u003cli\u003eW211 (E-Class) → steering shaft interference common\u003c\/li\u003e\n    \u003cli\u003eW220 \/ C215 (S \/ CL) → subframe clearance issues\u003c\/li\u003e\n    \u003cli\u003eR230 (SL) → tight around transmission tunnel\u003c\/li\u003e\n    \u003cli\u003eW203 (C55 AMG) → extremely tight engine bay\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eNotice:\u003c\/strong\u003e Off-road Certification. These headers are for competition use only. The header kits include downpipes. These headers will have to be welded to your existing exhaust system.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eThe Mercedes Benz Precision Caliber\u003c\/h3\u003e\n  \u003cp\u003ePrecision engineering meets raw power. Unlocking the exhaust flow on your M113K not only restores lost volumetric efficiency and reduces thermal loads, but it completely transforms the exhaust note, delivering the deep, aggressive V8 tone your AMG was built to produce.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":48299710939384,"sku":"DS-EQ9VN5KH0","price":589.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/exhaust-headers-for-mercedes-benz-e55-amg-2003-2006-5-4l-supercharged-v8-1.jpg?v=1777521889","url":"https:\/\/performancechiptuning.com\/fr\/products\/exhaust-headers-for-mercedes-benz-e55-amg-2003-2006-5-4l-supercharged-v8","provider":"Performance Chip Tuning","version":"1.0","type":"link"}