MTC Motorsport BMW F80 F82 M3 M4 Alloy Chargepipe Kit with Hoses and Clamps. These intakes are mandrel-bent for better airflow and maximum internal size to ensure ultimate performance without the loss of mid-range torque. These are premium quality compared to others as these are not welded from several pieces. These intakes provide a sharper throttle response so your car will feel more free and responsive with these installed. Both chargepipes have a single port for meth or water injection. The pipes will come powder coated in black with a crinkle finish. We have tested these and found increases of around 12-15bhp. These chargepipes will fit the following models. Professional installation is recommended as these can sometimes be tricky to install. The engine cover will need trimming slightly where the pipes come up at the top as they are slightly bigger and are a different shape to the standard restrictive ones. There are some pictures of the engine cover trimmed in the listing. This can be done very neatly and looks stock. Included in the kit.