Stainless Steel Headers for M113 Engines

The RENNtech stainless steel headers are precision-engineered for M113 engines, offering a true bolt-on installation that connects directly to the OE down pipes. Each header is meticulously hand-built using mandrel-bent, seamless tubing and finished with CNC-machined stainless steel flanges. Constructed from premium T-304 stainless steel, these exhaust headers are further enhanced with a ceramic coating. This coating serves a dual purpose: reducing residual heat within the engine compartment and providing increased resistance against thermal stress, contributing to longevity and consistent performance. RENNtech utilizes advanced computer-aided design (CAD) and flow-analysis software during the development process. This ensures that the headers deliver significant performance gains across the entire RPM range. The specific gains reported are +15 HP and +20 TQ. These headers are compatible with several Mercedes-Benz models, including the 209 CLK 500, 209 CLK 55 AMG, 203 C 55 AMG, and 171 SLK 55 AMG.