Upgrade from your stock intercooler to the MAD stepped core intercooler for maximum performance and reliability! The MAD BMW 5" HD Stepped Core F Chassis Intercooler is the ultimate solution for BMW enthusiasts who demand the best performance from their vehicle. This high-quality intercooler is designed to improve the performance of your BMW's turbocharged engine by increasing airflow and reducing intake temperatures. The 5" HD Stepped Core design of this intercooler is optimized to provide maximum cooling efficiency, which translates into increased horsepower and torque. The intercooler is constructed from high-quality aluminum with a durable powder-coated finish, ensuring long-lasting performance and protection against the elements. Designed to fit the F Chassis BMW models, this intercooler is a direct bolt-on replacement for the factory unit, making installation a breeze. The precision-machined inlet and outlet ensure a perfect fit and leak-free operation. The MAD BMW 5" HD Stepped Core F Chassis Intercooler features a unique stepped design that maximizes surface area with a high fin density core for maximum cooling. Weighing 22lbs with dimensions of 21"x8.5"x5", It provides the optimal  cooling solution for stage 1 and stage 2 applications.   The result is reduced heat soak, improved throttle response, and increased power output. In addition to its performance benefits, the MAD BMW 5" HD Stepped Core F Chassis Intercooler is also aesthetically pleasing, with a sleek and modern design that complements the look of your BMW. It is also backed by a lifetime warranty, so you can be confident in your purchase. Upgrade your BMW's performance with the MAD BMW 5" HD Stepped Core F Chassis Intercooler and experience the ultimate in cooling efficiency, power, and style.      -This intercooler is compatible with stock and aftermarket charge pipes. Features: Direct stock replacement, no cutting required High-quality stepped core (HD Core) Lifetime warranty on defects and fitment 90 day return period All orders ship in 1-2 business days Spot on fitment Fits rear-wheel-drive & X-drive models Fitment: M135 228 M235 M2 F chassis 328 F chassis 335 428 435