The BorgWarner Turbocharger Kit - 135228 is a comprehensive set of products designed for use in a car's turbocharger system. The kit includes various components such as a turbocharger, a wastegate, a boost controller, an intercooler, a blow-off valve, a downpipe, an oil line, a gasket, and mounting hardware. These products work together to enhance the performance and efficiency of a car's engine by increasing the amount of air and fuel that can be delivered to the combustion chamber. The kit is suitable for a wide range of car models and is a cost-effective solution for upgrading a car's turbocharger system.