RENNtech | Carbon Fiber Airbox | M157 | 63 AMG | 5.5L BiTurbo V8 SeriesUsing the highest quality pre preg carbon fiber, our 4 piece airbox kit for the 63 series biturbo M157 engine comes complete with flow optimized turbo tubes to maximize engine performance by increasing the volume of incoming airflow. The carbon fiber airbox was designed, engineered and manufactured in the USA using only industry leading materials to ensure long lasting durability and appearance. Our carbon air box is able to offer gains up to +10 hp
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