The Mishimoto 2015-2020 BMW F80 M3/M4 Intercooler Pipe Kit SS is designed to replace the factory restrictive plastic intercooler pipes with a larger, more efficient, and more durable stainless steel design. This kit includes two stainless steel pipes, four silicone couplers, and all necessary hardware for a direct bolt-on installation. The larger diameter of the pipes increases air flow and helps to reduce air temperatures, resulting in improved power and performance. The polished stainless steel finish ensures a long-lasting, corrosion-resistant installation.