Mishimoto Performance Aluminum Radiator, fits Honda Civic 1.5T/2.0L 2016-2021 - MMRAD-CIV-16PRODUCT FEATURES Direct fit for the 2016 2021 Honda Civic 1. 5T (including Si) 36mm thick two row core features strategically designed fins for optimal heat dissipation 31% increase in core volume for improved cooling capacity 36% increase in external fin surface area effectively transfers heat out of coolant All aluminum design with precision TIG welded end tanks Includes Mishimoto Magnetic Drain Plug to capture metallic debris within the cooling