Stepped core design for maximum surface area contact and internal intake air-flow volume. Largest “drop-in fit” intercooler available in the industry. Designed with 3D scanning / rapid prototype technology to ensure precise fitment and maximum surface area utilization. Lab tested on CSF’s in-house wind tunnel. Rounded front face bar/plate design for optimized airflow through the core.* Drop-in fit” design for an easy & quick plug-and-play installation. Complete with OEM style “Quick-Connect” inlet/outlet connections. Fully reversible back to OEM spec with no modifications needed. Lifetime warranty. ~40 *F drop in temperatures when compared to the OEM intercooler after multiple repeated runs. Power increase of 15-20 hp on stock cars, 25+ hp on modified vehicles. Fits: F87 M2 F3x 328i / 428i F3x 335i / 435i F2x M235i