Stage 1 | 2019+ Mercedes A45S W177 M139

The Stage One Performance Package for the Mercedes A45S W177 M139 engine (2019+) is the perfect upgrade for enthusiasts looking to enhance their vehicle’s power and performance. This package includes an ECU tune and a high-performance downpipe with a heatshield, designed to optimize exhaust flow and improve turbo efficiency. The ECU tune unlocks the engine’s full potential, boosting horsepower and torque, while enhancing throttle response and overall drivability. The downpipe, featuring a heatshield, replaces the restrictive factory unit, allowing for faster turbo spool and better exhaust flow, while also reducing heat soak. Together, these components work to deliver significant performance gains, an aggressive exhaust note, and a more dynamic driving experience, making it the perfect choice for those looking to get the most out of their Mercedes A45S.