The Mishimoto 15-20 BMW F8X M3/M4 Performance Air-to-Water Intercooler Power Pack in Frozen Dark Gray is an ideal upgrade for your BMW. This power pack includes a high-performance intercooler, silicone hoses, and all necessary hardware for a complete installation. The intercooler features a high-flow bar-and-plate design that is larger than stock and provides improved cooling and performance. The included silicone hoses are designed to withstand higher temperatures and pressures than stock hoses, and the included hardware ensures a secure and leak-free installation. This power pack is an essential upgrade for any BMW owner looking to maximize their vehicle's performance.