Skunk2’s all-aluminum, Full-Size Alpha Series Radiator for the 88-’91 Civic/ CRX is designed to dramatically increase both cooling efficiency and engine performance.Alpha Series Radiators are manufactured from lightweight and durable aluminum, feature 100-percent brazed cores, and include polished end tanks with Skunk2’s signature Alpha logo embossed along each side. Each Alpha Series Radiator features a dual-core design, high-efficiency fins for maximum cooling capabilities, and includes a genuine Skunk2 Radiator Cap for maximum performance and a premium appearance. Each Alpha Series Radiator also includes provisions for the OEM cooling fan and larger 1.25" inlet and outlet, which makes it ideal for most engine swaps that utilize larger radiator hoses.Skunk2’s commitment to producing high-quality components means that each Alpha Series Radiator meets or exceeds original equipment manufacturer standards, that each radiator may be installed without modification to the vehicle, and is compatible with OEM cooling fans and shrouds. Skunk2’s Alpha Series Radiators are the perfect addition to any high-performance vehicle and are designed for the street or track.This Skunk2 Racing Radiator features a 1.25" inlet and outlet. The factory hose(s) ID measure just over 1.00" and may not fit on this radiator.SPECIAL NOTE: Due to the increase in size, it may be necessary to modify the hood for proper radiator cap clearance. Some engine swap applications may require custom radiator hoses and/or cooling fans. Not Compatible w/ Automatic Transmission Cooling System.