This radiator is made especially for more powerful and hotter running Mini Cooper engines. Developed using the latest technology and design for increasing air flow, utilizing just two rows of very large cores and V shaped gills. Not only is this radiator much lighter and narrower than the 4 core, it performs as well as the old 4-core. Being of lighter material it can be prone to fin blockage/damage by off road use. Not recommended for such applications. Use C-ARA4444, 4-core instead. May require minor modifications to 2-piece radiator shroud to fit to Mk I/II. USES SHALLOW CAP GRC111 (not included).