---Black coating designed to optimise heat dissipation, resulting in consistent lower temps ---Keeps engine temperatures down; ideal for track use ---More water volume within a channel means greater cooling efficiency ---Polished alloy and fully TIG welded for strength and long lasting durability ---Designed to be a direct replacement for ease of fitment Fitment Subaru Impreza 2.0 Newage / Bugeye 2001-2003 models Inc. WRX & STI Please Note: This item will only fit models without the radiator cap.