Proflow Intercooler Aluminium Natural, Universal Bare & Plate Core Only 600 x 300 x 76mm - PFEICORE-1Part Number: PFEICORE 1 Our universal intercooler cores are perfect to custom build your own intercooler for those applications when a standard intercooler just wont fit. They feature a tube and fin or a delta fin design and are constructed from 6061 aluminium which are then TIG welded. The tube and fin cores are great for everyday driving while the delta fin cores are good for circuit racing.